131396511 has 8 divisors (see below), whose sum is σ = 175517824. Its totient is φ = 87436440.

The previous prime is 131396483. The next prime is 131396549. The reversal of 131396511 is 115693131.

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

It is not a de Polignac number, because 131396511 - 2⁵ = 131396479 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 (131396311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38395 + ... + 41676.

It is an arithmetic number, because the mean of its divisors is an integer number (21939728).

Almost surely, 2^131396511 is an apocalyptic number.

131396511 is a deficient number, since it is larger than the sum of its proper divisors (44121313).

131396511 is an equidigital number, since it uses as much as digits as its factorization.

131396511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80621.

The product of its digits is 2430, while the sum is 30.

The square root of 131396511 is about 11462.8317182099. The cubic root of 131396511 is about 508.3872042762.

The spelling of 131396511 in words is "one hundred thirty-one million, three hundred ninety-six thousand, five hundred eleven".