131353257 has 8 divisors (see below), whose sum is σ = 200157376. Its totient is φ = 75058992.

The previous prime is 131353223. The next prime is 131353279. The reversal of 131353257 is 752353131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131353257 - 2⁷ = 131353129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131353457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3127438 + ... + 3127479.

It is an arithmetic number, because the mean of its divisors is an integer number (25019672).

Almost surely, 2^131353257 is an apocalyptic number.

It is an amenable number.

131353257 is a deficient number, since it is larger than the sum of its proper divisors (68804119).

131353257 is an equidigital number, since it uses as much as digits as its factorization.

131353257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254927.

The product of its digits is 9450, while the sum is 30.

The square root of 131353257 is about 11460.9448563371. The cubic root of 131353257 is about 508.3314133643.

The spelling of 131353257 in words is "one hundred thirty-one million, three hundred fifty-three thousand, two hundred fifty-seven".