131947403 has 8 divisors (see below), whose sum is σ = 150965472. Its totient is φ = 112971456.

The previous prime is 131947393. The next prime is 131947411. The reversal of 131947403 is 304749131.

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 131947403 - 2⁶ = 131947339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131947403.

It is not an unprimeable number, because it can be changed into a prime (131947433) 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, 3500 + ... + 16617.

It is an arithmetic number, because the mean of its divisors is an integer number (18870684).

Almost surely, 2^131947403 is an apocalyptic number.

131947403 is a deficient number, since it is larger than the sum of its proper divisors (19018069).

131947403 is an equidigital number, since it uses as much as digits as its factorization.

131947403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21061.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 131947403 is about 11486.8360743940. The cubic root of 131947403 is about 509.0967004144.

The spelling of 131947403 in words is "one hundred thirty-one million, nine hundred forty-seven thousand, four hundred three".