131794457 has 4 divisors (see below), whose sum is σ = 131969316. Its totient is φ = 131619600.

The previous prime is 131794451. The next prime is 131794463. The reversal of 131794457 is 754497131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (131794451) and next prime (131794463).

It can be written as a sum of positive squares in 2 ways, for example, as 64947481 + 66846976 = 8059^2 + 8176^2 .

It is a cyclic number.

It is not a de Polignac number, because 131794457 - 2²² = 127600153 is a prime.

It is a super-3 number, since 3×131794457³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (131794451) 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, 86294 + ... + 87807.

It is an arithmetic number, because the mean of its divisors is an integer number (32992329).

Almost surely, 2^131794457 is an apocalyptic number.

It is an amenable number.

131794457 is a deficient number, since it is larger than the sum of its proper divisors (174859).

131794457 is an equidigital number, since it uses as much as digits as its factorization.

131794457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174858.

The product of its digits is 105840, while the sum is 41.

The square root of 131794457 is about 11480.1766972464. The cubic root of 131794457 is about 508.8999189523.

The spelling of 131794457 in words is "one hundred thirty-one million, seven hundred ninety-four thousand, four hundred fifty-seven".