131453173 has 2 divisors, whose sum is σ = 131453174. Its totient is φ = 131453172.

The previous prime is 131453149. The next prime is 131453213. The reversal of 131453173 is 371354131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83594449 + 47858724 = 9143^2 + 6918^2 .

It is an emirp because it is prime and its reverse (371354131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131453173 - 2⁵ = 131453141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131453573) 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, 65726586 + 65726587.

It is an arithmetic number, because the mean of its divisors is an integer number (65726587).

Almost surely, 2^131453173 is an apocalyptic number.

It is an amenable number.

131453173 is a deficient number, since it is larger than the sum of its proper divisors (1).

131453173 is an equidigital number, since it uses as much as digits as its factorization.

131453173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 131453173 is about 11465.3030051543. The cubic root of 131453173 is about 508.4602708943.

The spelling of 131453173 in words is "one hundred thirty-one million, four hundred fifty-three thousand, one hundred seventy-three".