131402339 has 4 divisors (see below), whose sum is σ = 131779200. Its totient is φ = 131025480.

The previous prime is 131402291. The next prime is 131402351. The reversal of 131402339 is 933204131.

It is a happy number.

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 131402339 - 2²⁰ = 130353763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131402239) 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, 187907 + ... + 188604.

It is an arithmetic number, because the mean of its divisors is an integer number (32944800).

Almost surely, 2^131402339 is an apocalyptic number.

131402339 is a deficient number, since it is larger than the sum of its proper divisors (376861).

131402339 is an equidigital number, since it uses as much as digits as its factorization.

131402339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376860.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 131402339 is about 11463.0859283179. The cubic root of 131402339 is about 508.3947205509.

The spelling of 131402339 in words is "one hundred thirty-one million, four hundred two thousand, three hundred thirty-nine".