131574473 has 2 divisors, whose sum is σ = 131574474. Its totient is φ = 131574472.

The previous prime is 131574463. The next prime is 131574493. The reversal of 131574473 is 374475131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130256569 + 1317904 = 11413^2 + 1148^2 .

It is a cyclic number.

It is not a de Polignac number, because 131574473 - 2⁶ = 131574409 is a prime.

It is a super-3 number, since 3×131574473³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (131574403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65787236 + 65787237.

It is an arithmetic number, because the mean of its divisors is an integer number (65787237).

Almost surely, 2^131574473 is an apocalyptic number.

It is an amenable number.

131574473 is a deficient number, since it is larger than the sum of its proper divisors (1).

131574473 is an equidigital number, since it uses as much as digits as its factorization.

131574473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 131574473 is about 11470.5916586722. The cubic root of 131574473 is about 508.6166187616.

The spelling of 131574473 in words is "one hundred thirty-one million, five hundred seventy-four thousand, four hundred seventy-three".