131574523 has 2 divisors, whose sum is σ = 131574524. Its totient is φ = 131574522.

The previous prime is 131574493. The next prime is 131574581. The reversal of 131574523 is 325475131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131574523 is a prime.

It is a super-3 number, since 3×131574523³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (131574593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65787261 + 65787262.

It is an arithmetic number, because the mean of its divisors is an integer number (65787262).

Almost surely, 2^131574523 is an apocalyptic number.

131574523 is a deficient number, since it is larger than the sum of its proper divisors (1).

131574523 is an equidigital number, since it uses as much as digits as its factorization.

131574523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 131574523 is about 11470.5938381585. The cubic root of 131574523 is about 508.6166831885.

The spelling of 131574523 in words is "one hundred thirty-one million, five hundred seventy-four thousand, five hundred twenty-three".