131145859 has 12 divisors (see below), whose sum is σ = 146912400. Its totient is φ = 116878944.

The previous prime is 131145827. The next prime is 131145881. The reversal of 131145859 is 958541131.

It is not a de Polignac number, because 131145859 - 2⁵ = 131145827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131145359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8479 + ... + 18280.

It is an arithmetic number, because the mean of its divisors is an integer number (12242700).

Almost surely, 2^131145859 is an apocalyptic number.

131145859 is a deficient number, since it is larger than the sum of its proper divisors (15766541).

131145859 is a wasteful number, since it uses less digits than its factorization.

131145859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26814 (or 26801 counting only the distinct ones).

The product of its digits is 21600, while the sum is 37.

The square root of 131145859 is about 11451.8932495898. The cubic root of 131145859 is about 508.0637320065.

The spelling of 131145859 in words is "one hundred thirty-one million, one hundred forty-five thousand, eight hundred fifty-nine".