1252812160 has 32 divisors (see below), whose sum is σ = 2995005600. Its totient is φ = 501124608.

The previous prime is 1252812109. The next prime is 1252812199. The reversal of 1252812160 is 612182521.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978120 + ... + 979399.

It is an arithmetic number, because the mean of its divisors is an integer number (93593925).

Almost surely, 2^1252812160 is an apocalyptic number.

1252812160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252812160 is an abundant number, since it is smaller than the sum of its proper divisors (1742193440).

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

1252812160 is an equidigital number, since it uses as much as digits as its factorization.

1252812160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957538 (or 1957526 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1252812160 is about 35395.0866646771. The cubic root of 1252812160 is about 1078.0245553247.

Adding to 1252812160 its reverse (612182521), we get a palindrome (1864994681).

The spelling of 1252812160 in words is "one billion, two hundred fifty-two million, eight hundred twelve thousand, one hundred sixty".