131369305 has 8 divisors (see below), whose sum is σ = 157986432. Its totient is φ = 104866608.

The previous prime is 131369299. The next prime is 131369321. The reversal of 131369305 is 503963131.

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 131369305 - 2³ = 131369297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26059 + ... + 30688.

It is an arithmetic number, because the mean of its divisors is an integer number (19748304).

Almost surely, 2^131369305 is an apocalyptic number.

It is an amenable number.

131369305 is a deficient number, since it is larger than the sum of its proper divisors (26617127).

131369305 is an equidigital number, since it uses as much as digits as its factorization.

131369305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57215.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 131369305 is about 11461.6449517510. The cubic root of 131369305 is about 508.3521142095.

The spelling of 131369305 in words is "one hundred thirty-one million, three hundred sixty-nine thousand, three hundred five".