131353501 has 4 divisors (see below), whose sum is σ = 131743612. Its totient is φ = 130963392.

The previous prime is 131353477. The next prime is 131353513. The reversal of 131353501 is 105353131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40627876 + 90725625 = 6374^2 + 9525^2 .

It is a cyclic number.

It is not a de Polignac number, because 131353501 - 2²⁵ = 97799069 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 (131353561) 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, 194550 + ... + 195223.

It is an arithmetic number, because the mean of its divisors is an integer number (32935903).

Almost surely, 2^131353501 is an apocalyptic number.

It is an amenable number.

131353501 is a deficient number, since it is larger than the sum of its proper divisors (390111).

131353501 is an equidigital number, since it uses as much as digits as its factorization.

131353501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390110.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 131353501 is about 11460.9555011788. The cubic root of 131353501 is about 508.3317281206.

The spelling of 131353501 in words is "one hundred thirty-one million, three hundred fifty-three thousand, five hundred one".