131525473 has 2 divisors, whose sum is σ = 131525474. Its totient is φ = 131525472.

The previous prime is 131525453. The next prime is 131525479. The reversal of 131525473 is 374525131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90782784 + 40742689 = 9528^2 + 6383^2 .

It is a cyclic number.

It is not a de Polignac number, because 131525473 - 2¹⁷ = 131394401 is a prime.

It is not a weakly prime, because it can be changed into another prime (131525479) 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, 65762736 + 65762737.

It is an arithmetic number, because the mean of its divisors is an integer number (65762737).

Almost surely, 2^131525473 is an apocalyptic number.

It is an amenable number.

131525473 is a deficient number, since it is larger than the sum of its proper divisors (1).

131525473 is an equidigital number, since it uses as much as digits as its factorization.

131525473 is an odious number, because the sum of its binary digits is odd.

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

The square root of 131525473 is about 11468.4555629780. The cubic root of 131525473 is about 508.5534724988.

The spelling of 131525473 in words is "one hundred thirty-one million, five hundred twenty-five thousand, four hundred seventy-three".