131640089 has 16 divisors (see below), whose sum is σ = 152530560. Its totient is φ = 111283200.

The previous prime is 131640083. The next prime is 131640101. The reversal of 131640089 is 980046131.

It is a happy number.

It is not a de Polignac number, because 131640089 - 2⁴ = 131640073 is a prime.

It is a super-2 number, since 2×131640089² = 34658226063855842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131640083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187439 + ... + 188139.

It is an arithmetic number, because the mean of its divisors is an integer number (9533160).

Almost surely, 2^131640089 is an apocalyptic number.

It is an amenable number.

131640089 is a deficient number, since it is larger than the sum of its proper divisors (20890471).

131640089 is a wasteful number, since it uses less digits than its factorization.

131640089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 131640089 is about 11473.4514859305. The cubic root of 131640089 is about 508.7011535022.

The spelling of 131640089 in words is "one hundred thirty-one million, six hundred forty thousand, eighty-nine".