131256151 has 16 divisors (see below), whose sum is σ = 143990784. Its totient is φ = 118921824.

The previous prime is 131256127. The next prime is 131256163. The reversal of 131256151 is 151652131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131256151 - 2⁹ = 131255639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131257151) 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, 176286 + ... + 177028.

It is an arithmetic number, because the mean of its divisors is an integer number (8999424).

Almost surely, 2^131256151 is an apocalyptic number.

131256151 is a deficient number, since it is larger than the sum of its proper divisors (12734633).

131256151 is a wasteful number, since it uses less digits than its factorization.

131256151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990.

The product of its digits is 900, while the sum is 25.

The square root of 131256151 is about 11456.7076858930. The cubic root of 131256151 is about 508.2061171456.

The spelling of 131256151 in words is "one hundred thirty-one million, two hundred fifty-six thousand, one hundred fifty-one".