39102131 has 4 divisors (see below), whose sum is σ = 39115200. Its totient is φ = 39089064.

The previous prime is 39102113. The next prime is 39102137. The reversal of 39102131 is 13120193.

39102131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 39102131 - 2¹⁸ = 38839987 is a prime.

It is a super-2 number, since 2×39102131² = 3057953297482322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39102137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425 + ... + 8853.

It is an arithmetic number, because the mean of its divisors is an integer number (9778800).

Almost surely, 2^39102131 is an apocalyptic number.

39102131 is a deficient number, since it is larger than the sum of its proper divisors (13069).

39102131 is an equidigital number, since it uses as much as digits as its factorization.

39102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 39102131 is about 6253.1696762522. The cubic root of 39102131 is about 339.4169100475.

The spelling of 39102131 in words is "thirty-nine million, one hundred two thousand, one hundred thirty-one".