1252801172 has 48 divisors (see below), whose sum is σ = 2557056768. Its totient is φ = 526003200.

The previous prime is 1252801141. The next prime is 1252801181. The reversal of 1252801172 is 2711082521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272033 + ... + 276599.

It is an arithmetic number, because the mean of its divisors is an integer number (53272016).

Almost surely, 2^1252801172 is an apocalyptic number.

It is an amenable number.

1252801172 is an abundant number, since it is smaller than the sum of its proper divisors (1304255596).

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

1252801172 is a wasteful number, since it uses less digits than its factorization.

1252801172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776 (or 4774 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 1252801172 is about 35394.9314450530. The cubic root of 1252801172 is about 1078.0214036502.

Adding to 1252801172 its reverse (2711082521), we get a palindrome (3963883693).

The spelling of 1252801172 in words is "one billion, two hundred fifty-two million, eight hundred one thousand, one hundred seventy-two".