131320415 has 8 divisors (see below), whose sum is σ = 158040720. Its totient is φ = 104752192.

The previous prime is 131320411. The next prime is 131320447. The reversal of 131320415 is 514023131.

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 131320415 - 2² = 131320411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320411) 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, 36110 + ... + 39579.

It is an arithmetic number, because the mean of its divisors is an integer number (19755090).

Almost surely, 2^131320415 is an apocalyptic number.

131320415 is a deficient number, since it is larger than the sum of its proper divisors (26720305).

131320415 is an equidigital number, since it uses as much as digits as its factorization.

131320415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76041.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131320415 is about 11459.5119878641. The cubic root of 131320415 is about 508.2890441273.

Adding to 131320415 its reverse (514023131), we get a palindrome (645343546).

The spelling of 131320415 in words is "one hundred thirty-one million, three hundred twenty thousand, four hundred fifteen".