1251542352 has 20 divisors (see below), whose sum is σ = 3233151200. Its totient is φ = 417180768.

The previous prime is 1251542339. The next prime is 1251542359. The reversal of 1251542352 is 2532451521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251542359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13036852 + ... + 13036947.

It is an arithmetic number, because the mean of its divisors is an integer number (161657560).

Almost surely, 2^1251542352 is an apocalyptic number.

1251542352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251542352 is an abundant number, since it is smaller than the sum of its proper divisors (1981608848).

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

1251542352 is a wasteful number, since it uses less digits than its factorization.

1251542352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26073810 (or 26073804 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 1251542352 is about 35377.1444862357. The cubic root of 1251542352 is about 1077.6602158029.

Adding to 1251542352 its reverse (2532451521), we get a palindrome (3783993873).

The spelling of 1251542352 in words is "one billion, two hundred fifty-one million, five hundred forty-two thousand, three hundred fifty-two".