131536451 has 4 divisors (see below), whose sum is σ = 131666304. Its totient is φ = 131406600.

The previous prime is 131536439. The next prime is 131536481. The reversal of 131536451 is 154635131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131536451 - 2⁶ = 131536387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131536481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63395 + ... + 65436.

It is an arithmetic number, because the mean of its divisors is an integer number (32916576).

Almost surely, 2^131536451 is an apocalyptic number.

131536451 is a deficient number, since it is larger than the sum of its proper divisors (129853).

131536451 is a wasteful number, since it uses less digits than its factorization.

131536451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129852.

The product of its digits is 5400, while the sum is 29.

The square root of 131536451 is about 11468.9341701834. The cubic root of 131536451 is about 508.5676212021.

The spelling of 131536451 in words is "one hundred thirty-one million, five hundred thirty-six thousand, four hundred fifty-one".