1252153512 has 32 divisors (see below), whose sum is σ = 3478204800. Its totient is φ = 417384432.

The previous prime is 1252153477. The next prime is 1252153541. The reversal of 1252153512 is 2153512521.

1252153512 is a `hidden beast` number, since 125 + 2 + 1 + 535 + 1 + 2 = 666.

It is a super-2 number, since 2×1252153512² = 3135776835227868288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2898288 + ... + 2898719.

It is an arithmetic number, because the mean of its divisors is an integer number (108693900).

Almost surely, 2^1252153512 is an apocalyptic number.

1252153512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252153512 is an abundant number, since it is smaller than the sum of its proper divisors (2226051288).

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

1252153512 is a wasteful number, since it uses less digits than its factorization.

1252153512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797022 (or 5797012 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 1252153512 is about 35385.7812122327. The cubic root of 1252153512 is about 1077.8356035656.

The spelling of 1252153512 in words is "one billion, two hundred fifty-two million, one hundred fifty-three thousand, five hundred twelve".