131337403 has 4 divisors (see below), whose sum is σ = 131689888. Its totient is φ = 130984920.

The previous prime is 131337377. The next prime is 131337407. The reversal of 131337403 is 304733131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131337403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131337407) 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, 175683 + ... + 176428.

It is an arithmetic number, because the mean of its divisors is an integer number (32922472).

Almost surely, 2^131337403 is an apocalyptic number.

131337403 is a deficient number, since it is larger than the sum of its proper divisors (352485).

131337403 is an equidigital number, since it uses as much as digits as its factorization.

131337403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352484.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 131337403 is about 11460.2531821945. The cubic root of 131337403 is about 508.3109611104.

The spelling of 131337403 in words is "one hundred thirty-one million, three hundred thirty-seven thousand, four hundred three".