1252136360 has 32 divisors (see below), whose sum is σ = 2983032360. Its totient is φ = 471392256.

The previous prime is 1252136359. The next prime is 1252136371. The reversal of 1252136360 is 636312521.

It can be written as a sum of positive squares in 4 ways, for example, as 1173884644 + 78251716 = 34262^2 + 8846^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920009 + ... + 921368.

Almost surely, 2^1252136360 is an apocalyptic number.

1252136360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252136360 is an abundant number, since it is smaller than the sum of its proper divisors (1730896000).

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

1252136360 is a wasteful number, since it uses less digits than its factorization.

1252136360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841405 (or 1841401 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1252136360 is about 35385.5388541704. The cubic root of 1252136360 is about 1077.8306821454.

Adding to 1252136360 its reverse (636312521), we get a palindrome (1888448881).

The spelling of 1252136360 in words is "one billion, two hundred fifty-two million, one hundred thirty-six thousand, three hundred sixty".