1272485052 has 72 divisors (see below), whose sum is σ = 3341834496. Its totient is φ = 423381168.

The previous prime is 1272485017. The next prime is 1272485059. The reversal of 1272485052 is 2505842721.

It is a happy number.

1272485052 is a `hidden beast` number, since 127 + 2 + 485 + 0 + 52 = 666.

1272485052 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1272484998 and 1272485016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272485059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 803053 + ... + 804635.

It is an arithmetic number, because the mean of its divisors is an integer number (46414368).

Almost surely, 2^1272485052 is an apocalyptic number.

1272485052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272485052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670917248).

1272485052 is an abundant number, since it is smaller than the sum of its proper divisors (2069349444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1272485052 is a wasteful number, since it uses less digits than its factorization.

1272485052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 1272485052 is about 35671.9084434797. The cubic root of 1272485052 is about 1083.6380092847.

The spelling of 1272485052 in words is "one billion, two hundred seventy-two million, four hundred eighty-five thousand, fifty-two".