325872139 has 2 divisors, whose sum is σ = 325872140. Its totient is φ = 325872138.

The previous prime is 325872109. The next prime is 325872161. The reversal of 325872139 is 931278523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 325872139 - 2²³ = 317483531 is a prime.

It is not a weakly prime, because it can be changed into another prime (325872109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162936069 + 162936070.

It is an arithmetic number, because the mean of its divisors is an integer number (162936070).

Almost surely, 2^325872139 is an apocalyptic number.

325872139 is a deficient number, since it is larger than the sum of its proper divisors (1).

325872139 is an equidigital number, since it uses as much as digits as its factorization.

325872139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 325872139 is about 18051.9289551006. The cubic root of 325872139 is about 688.1488848453.

The spelling of 325872139 in words is "three hundred twenty-five million, eight hundred seventy-two thousand, one hundred thirty-nine".