1252136522 has 64 divisors (see below), whose sum is σ = 2380519680. Its totient is φ = 480743424.

The previous prime is 1252136521. The next prime is 1252136533. The reversal of 1252136522 is 2256312521.

It is not an unprimeable number, because it can be changed into a prime (1252136521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1510004 + ... + 1510832.

It is an arithmetic number, because the mean of its divisors is an integer number (37195620).

Almost surely, 2^1252136522 is an apocalyptic number.

1252136522 is a deficient number, since it is larger than the sum of its proper divisors (1128383158).

1252136522 is a wasteful number, since it uses less digits than its factorization.

1252136522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its digits is 7200, while the sum is 29.

The square root of 1252136522 is about 35385.5411432410. The cubic root of 1252136522 is about 1077.8307286283.

The spelling of 1252136522 in words is "one billion, two hundred fifty-two million, one hundred thirty-six thousand, five hundred twenty-two".