1272323250 has 96 divisors (see below), whose sum is σ = 3753195264. Its totient is φ = 308436000.

The previous prime is 1272323243. The next prime is 1272323251. The reversal of 1272323250 is 523232721.

It is a happy number.

1272323250 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1272323251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 954 + ... + 50453.

It is an arithmetic number, because the mean of its divisors is an integer number (39095784).

Almost surely, 2^1272323250 is an apocalyptic number.

1272323250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272323250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876597632).

1272323250 is an abundant number, since it is smaller than the sum of its proper divisors (2480872014).

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

1272323250 is a wasteful number, since it uses less digits than its factorization.

1272323250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51441 (or 51428 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 1272323250 is about 35669.6404523511. The cubic root of 1272323250 is about 1083.5920775784.

Adding to 1272323250 its reverse (523232721), we get a palindrome (1795555971).

The spelling of 1272323250 in words is "one billion, two hundred seventy-two million, three hundred twenty-three thousand, two hundred fifty".