1253188272 has 40 divisors (see below), whose sum is σ = 3699890176. Its totient is φ = 358053696.

The previous prime is 1253188253. The next prime is 1253188289. The reversal of 1253188272 is 2728813521.

It is a self number, because there is not a number n which added to its sum of digits gives 1253188272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1864528 + ... + 1865199.

Almost surely, 2^1253188272 is an apocalyptic number.

1253188272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253188272 is an abundant number, since it is smaller than the sum of its proper divisors (2446701904).

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

1253188272 is a wasteful number, since it uses less digits than its factorization.

1253188272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3729745 (or 3729739 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 1253188272 is about 35400.3993197817. The cubic root of 1253188272 is about 1078.1324239573.

The spelling of 1253188272 in words is "one billion, two hundred fifty-three million, one hundred eighty-eight thousand, two hundred seventy-two".