1252322131 has 8 divisors (see below), whose sum is σ = 1276887024. Its totient is φ = 1227887520.

The previous prime is 1252322087. The next prime is 1252322143. The reversal of 1252322131 is 1312232521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252322131 - 2²¹ = 1250224979 is a prime.

It is a super-2 number, since 2×1252322131² = 3136621439584762322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252322171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13045 + ... + 51718.

It is an arithmetic number, because the mean of its divisors is an integer number (159610878).

Almost surely, 2^1252322131 is an apocalyptic number.

1252322131 is a deficient number, since it is larger than the sum of its proper divisors (24564893).

1252322131 is an equidigital number, since it uses as much as digits as its factorization.

1252322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65141.

The product of its digits is 720, while the sum is 22.

The square root of 1252322131 is about 35388.1637133096. The cubic root of 1252322131 is about 1077.8839829915.

Adding to 1252322131 its reverse (1312232521), we get a palindrome (2564554652).

The spelling of 1252322131 in words is "one billion, two hundred fifty-two million, three hundred twenty-two thousand, one hundred thirty-one".