131353517 has 8 divisors (see below), whose sum is σ = 138864960. Its totient is φ = 123901920.

The previous prime is 131353513. The next prime is 131353549. The reversal of 131353517 is 715353131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131353517 - 2² = 131353513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131353517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131353513) 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, 10409 + ... + 19262.

It is an arithmetic number, because the mean of its divisors is an integer number (17358120).

Almost surely, 2^131353517 is an apocalyptic number.

It is an amenable number.

131353517 is a deficient number, since it is larger than the sum of its proper divisors (7511443).

131353517 is a wasteful number, since it uses less digits than its factorization.

131353517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29923.

The product of its digits is 4725, while the sum is 29.

The square root of 131353517 is about 11460.9561992008. The cubic root of 131353517 is about 508.3317487603.

The spelling of 131353517 in words is "one hundred thirty-one million, three hundred fifty-three thousand, five hundred seventeen".