1251031052 has 6 divisors (see below), whose sum is σ = 2189304348. Its totient is φ = 625515524.

The previous prime is 1251031049. The next prime is 1251031109. The reversal of 1251031052 is 2501301521.

It is a happy number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 156378878 + ... + 156378885.

It is an arithmetic number, because the mean of its divisors is an integer number (364884058).

Almost surely, 2^1251031052 is an apocalyptic number.

It is an amenable number.

1251031052 is a deficient number, since it is larger than the sum of its proper divisors (938273296).

1251031052 is a wasteful number, since it uses less digits than its factorization.

1251031052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312757767 (or 312757765 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1251031052 is about 35369.9173309749. The cubic root of 1251031052 is about 1077.5134415128.

Adding to 1251031052 its reverse (2501301521), we get a palindrome (3752332573).

The spelling of 1251031052 in words is "one billion, two hundred fifty-one million, thirty-one thousand, fifty-two".