1252157183 has 4 divisors (see below), whose sum is σ = 1253472048. Its totient is φ = 1250842320.

The previous prime is 1252157161. The next prime is 1252157201. The reversal of 1252157183 is 3817512521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252157183 - 2¹⁰ = 1252156159 is a prime.

It is a super-2 number, since 2×1252157183² = 3135795221876990978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252157113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656003 + ... + 657908.

It is an arithmetic number, because the mean of its divisors is an integer number (313368012).

Almost surely, 2^1252157183 is an apocalyptic number.

1252157183 is a deficient number, since it is larger than the sum of its proper divisors (1314865).

1252157183 is an equidigital number, since it uses as much as digits as its factorization.

1252157183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314864.

The product of its digits is 16800, while the sum is 35.

The square root of 1252157183 is about 35385.8330833117. The cubic root of 1252157183 is about 1077.8366568791.

The spelling of 1252157183 in words is "one billion, two hundred fifty-two million, one hundred fifty-seven thousand, one hundred eighty-three".