15140431325 has 6 divisors (see below), whose sum is σ = 18774134874. Its totient is φ = 12112345040.

The previous prime is 15140431309. The next prime is 15140431351. The reversal of 15140431325 is 52313404151.

It can be written as a sum of positive squares in 3 ways, for example, as 1586349241 + 13554082084 = 39829^2 + 116422^2 .

It is not a de Polignac number, because 15140431325 - 2⁴ = 15140431309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302808602 + ... + 302808651.

It is an arithmetic number, because the mean of its divisors is an integer number (3129022479).

Almost surely, 2^15140431325 is an apocalyptic number.

It is an amenable number.

15140431325 is a deficient number, since it is larger than the sum of its proper divisors (3633703549).

15140431325 is an equidigital number, since it uses as much as digits as its factorization.

15140431325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605617263 (or 605617258 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 15140431325 its reverse (52313404151), we get a palindrome (67453835476).

The spelling of 15140431325 in words is "fifteen billion, one hundred forty million, four hundred thirty-one thousand, three hundred twenty-five".