131750331 has 4 divisors (see below), whose sum is σ = 175667112. Its totient is φ = 87833552.

The previous prime is 131750329. The next prime is 131750383. The reversal of 131750331 is 133057131.

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 131750331 - 2¹ = 131750329 is a prime.

It is a super-2 number, since 2×131750331² = 34716299437219122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131750131) 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, 21958386 + ... + 21958391.

It is an arithmetic number, because the mean of its divisors is an integer number (43916778).

Almost surely, 2^131750331 is an apocalyptic number.

131750331 is a deficient number, since it is larger than the sum of its proper divisors (43916781).

131750331 is an equidigital number, since it uses as much as digits as its factorization.

131750331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43916780.

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 131750331 is about 11478.2547018264. The cubic root of 131750331 is about 508.8431178168.

The spelling of 131750331 in words is "one hundred thirty-one million, seven hundred fifty thousand, three hundred thirty-one".