131774427 has 12 divisors (see below), whose sum is σ = 195485680. Its totient is φ = 85475088.

The previous prime is 131774413. The next prime is 131774471. The reversal of 131774427 is 724477131.

It is not a de Polignac number, because 131774427 - 2⁴ = 131774411 is a prime.

It is a super-2 number, since 2×131774427² = 34728999222356658, 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 = 131774391 and 131774400.

It is not an unprimeable number, because it can be changed into a prime (131774407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197527 + ... + 198192.

Almost surely, 2^131774427 is an apocalyptic number.

131774427 is a deficient number, since it is larger than the sum of its proper divisors (63711253).

131774427 is a wasteful number, since it uses less digits than its factorization.

131774427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395762 (or 395759 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 131774427 is about 11479.3042907661. The cubic root of 131774427 is about 508.8741369327.

The spelling of 131774427 in words is "one hundred thirty-one million, seven hundred seventy-four thousand, four hundred twenty-seven".