1252651336 has 8 divisors (see below), whose sum is σ = 2348721270. Its totient is φ = 626325664.

The previous prime is 1252651327. The next prime is 1252651357. The reversal of 1252651336 is 6331562521.

It can be written as a sum of positive squares in only one way, i.e., 1218428836 + 34222500 = 34906^2 + 5850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78290701 + ... + 78290716.

Almost surely, 2^1252651336 is an apocalyptic number.

It is an amenable number.

1252651336 is a deficient number, since it is larger than the sum of its proper divisors (1096069934).

1252651336 is a wasteful number, since it uses less digits than its factorization.

1252651336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156581423 (or 156581419 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 1252651336 is about 35392.8147510197. The cubic root of 1252651336 is about 1077.9784245357.

The spelling of 1252651336 in words is "one billion, two hundred fifty-two million, six hundred fifty-one thousand, three hundred thirty-six".