131203439 has 8 divisors (see below), whose sum is σ = 136151040. Its totient is φ = 126300600.

The previous prime is 131203381. The next prime is 131203451. The reversal of 131203439 is 934302131.

It is a happy number.

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 131203439 - 2²⁴ = 114426223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131203469) 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, 5159 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (17018880).

Almost surely, 2^131203439 is an apocalyptic number.

131203439 is a deficient number, since it is larger than the sum of its proper divisors (4947601).

131203439 is a wasteful number, since it uses less digits than its factorization.

131203439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22381.

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

The square root of 131203439 is about 11454.4069684991. The cubic root of 131203439 is about 508.1380767846.

The spelling of 131203439 in words is "one hundred thirty-one million, two hundred three thousand, four hundred thirty-nine".