131346515 has 8 divisors (see below), whose sum is σ = 157677408. Its totient is φ = 105036160.

The previous prime is 131346511. The next prime is 131346517. The reversal of 131346515 is 515643131.

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

It is not a de Polignac number, because 131346515 - 2² = 131346511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131346511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21659 + ... + 27051.

It is an arithmetic number, because the mean of its divisors is an integer number (19709676).

Almost surely, 2^131346515 is an apocalyptic number.

131346515 is a deficient number, since it is larger than the sum of its proper divisors (26330893).

131346515 is an equidigital number, since it uses as much as digits as its factorization.

131346515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10269.

The product of its digits is 5400, while the sum is 29.

The square root of 131346515 is about 11460.6507232356. The cubic root of 131346515 is about 508.3227161329.

Adding to 131346515 its reverse (515643131), we get a palindrome (646989646).

The spelling of 131346515 in words is "one hundred thirty-one million, three hundred forty-six thousand, five hundred fifteen".