131658427 has 4 divisors (see below), whose sum is σ = 131751360. Its totient is φ = 131565496.

The previous prime is 131658407. The next prime is 131658481. The reversal of 131658427 is 724856131.

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 131658427 - 2¹¹ = 131656379 is a prime.

It is a super-2 number, since 2×131658427² = 34667882800228658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131658407) 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, 44308 + ... + 47185.

It is an arithmetic number, because the mean of its divisors is an integer number (32937840).

Almost surely, 2^131658427 is an apocalyptic number.

131658427 is a deficient number, since it is larger than the sum of its proper divisors (92933).

131658427 is an equidigital number, since it uses as much as digits as its factorization.

131658427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92932.

The product of its digits is 40320, while the sum is 37.

The square root of 131658427 is about 11474.2506073382. The cubic root of 131658427 is about 508.7247737856.

The spelling of 131658427 in words is "one hundred thirty-one million, six hundred fifty-eight thousand, four hundred twenty-seven".