131427331 has 4 divisors (see below), whose sum is σ = 150202672. Its totient is φ = 112651992.

The previous prime is 131427301. The next prime is 131427341. The reversal of 131427331 is 133724131.

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 131427331 - 2⁵ = 131427299 is a prime.

It is a super-2 number, since 2×131427331² = 34546286667567122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131427296 and 131427305.

It is not an unprimeable number, because it can be changed into a prime (131427301) 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, 9387660 + ... + 9387673.

It is an arithmetic number, because the mean of its divisors is an integer number (37550668).

Almost surely, 2^131427331 is an apocalyptic number.

131427331 is a deficient number, since it is larger than the sum of its proper divisors (18775341).

131427331 is an equidigital number, since it uses as much as digits as its factorization.

131427331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18775340.

The product of its digits is 1512, while the sum is 25.

The square root of 131427331 is about 11464.1759843436. The cubic root of 131427331 is about 508.4269497981.

The spelling of 131427331 in words is "one hundred thirty-one million, four hundred twenty-seven thousand, three hundred thirty-one".