1251158360 has 32 divisors (see below), whose sum is σ = 2963271600. Its totient is φ = 474122880.

The previous prime is 1251158329. The next prime is 1251158387. The reversal of 1251158360 is 638511521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822371 + ... + 823890.

Almost surely, 2^1251158360 is an apocalyptic number.

1251158360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251158360 is an abundant number, since it is smaller than the sum of its proper divisors (1712113240).

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

1251158360 is a wasteful number, since it uses less digits than its factorization.

1251158360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646291 (or 1646287 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1251158360 is about 35371.7169501284. The cubic root of 1251158360 is about 1077.5499904133.

Adding to 1251158360 its reverse (638511521), we get a palindrome (1889669881).

The spelling of 1251158360 in words is "one billion, two hundred fifty-one million, one hundred fifty-eight thousand, three hundred sixty".