1252131042 has 32 divisors (see below), whose sum is σ = 2605830912. Its totient is φ = 400784384.

The previous prime is 1252131029. The next prime is 1252131053. The reversal of 1252131042 is 2401312521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26943 + ... + 56834.

It is an arithmetic number, because the mean of its divisors is an integer number (81432216).

Almost surely, 2^1252131042 is an apocalyptic number.

1252131042 is an abundant number, since it is smaller than the sum of its proper divisors (1353699870).

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

1252131042 is a wasteful number, since it uses less digits than its factorization.

1252131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83882.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1252131042 is about 35385.4637103995. The cubic root of 1252131042 is about 1077.8291562435.

Adding to 1252131042 its reverse (2401312521), we get a palindrome (3653443563).

The spelling of 1252131042 in words is "one billion, two hundred fifty-two million, one hundred thirty-one thousand, forty-two".