1271002452 has 12 divisors (see below), whose sum is σ = 2965672416. Its totient is φ = 423667480.

The previous prime is 1271002423. The next prime is 1271002463. The reversal of 1271002452 is 2542001721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52958424 + ... + 52958447.

It is an arithmetic number, because the mean of its divisors is an integer number (247139368).

Almost surely, 2^1271002452 is an apocalyptic number.

1271002452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1271002452 is an abundant number, since it is smaller than the sum of its proper divisors (1694669964).

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

1271002452 is a wasteful number, since it uses less digits than its factorization.

1271002452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105916878 (or 105916876 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1271002452 is about 35651.1213287885. The cubic root of 1271002452 is about 1083.2169889942.

The spelling of 1271002452 in words is "one billion, two hundred seventy-one million, two thousand, four hundred fifty-two".