131958145 has 16 divisors (see below), whose sum is σ = 173900160. Its totient is φ = 95328000.

The previous prime is 131958143. The next prime is 131958157. The reversal of 131958145 is 541859131.

It is not a de Polignac number, because 131958145 - 2¹ = 131958143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131958143) 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, 361 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (10868760).

Almost surely, 2^131958145 is an apocalyptic number.

It is an amenable number.

131958145 is a deficient number, since it is larger than the sum of its proper divisors (41942015).

131958145 is a wasteful number, since it uses less digits than its factorization.

131958145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056.

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

The square root of 131958145 is about 11487.3036435884. The cubic root of 131958145 is about 509.1105154352.

The spelling of 131958145 in words is "one hundred thirty-one million, nine hundred fifty-eight thousand, one hundred forty-five".