131339943 has 36 divisors (see below), whose sum is σ = 233681760. Its totient is φ = 70632576.

The previous prime is 131339941. The next prime is 131339953. The reversal of 131339943 is 349933131.

It is not a de Polignac number, because 131339943 - 2¹ = 131339941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131339898 and 131339907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131339941) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1263 + ... + 16256.

It is an arithmetic number, because the mean of its divisors is an integer number (6491160).

Almost surely, 2^131339943 is an apocalyptic number.

131339943 is a deficient number, since it is larger than the sum of its proper divisors (102341817).

131339943 is a wasteful number, since it uses less digits than its factorization.

131339943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17556 (or 17546 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 131339943 is about 11460.3639994548. The cubic root of 131339943 is about 508.3142379163.

The spelling of 131339943 in words is "one hundred thirty-one million, three hundred thirty-nine thousand, nine hundred forty-three".