131734489 has 2 divisors, whose sum is σ = 131734490. Its totient is φ = 131734488.

The previous prime is 131734459. The next prime is 131734549. The reversal of 131734489 is 984437131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 49070025 = 9092^2 + 7005^2 .

It is an emirp because it is prime and its reverse (984437131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131734489 - 2²⁵ = 98180057 is a prime.

It is a super-2 number, since 2×131734489² = 34707951184182242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131734459) 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, 65867244 + 65867245.

It is an arithmetic number, because the mean of its divisors is an integer number (65867245).

Almost surely, 2^131734489 is an apocalyptic number.

It is an amenable number.

131734489 is a deficient number, since it is larger than the sum of its proper divisors (1).

131734489 is an equidigital number, since it uses as much as digits as its factorization.

131734489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 131734489 is about 11477.5645935887. The cubic root of 131734489 is about 508.8227221292.

The spelling of 131734489 in words is "one hundred thirty-one million, seven hundred thirty-four thousand, four hundred eighty-nine".