131514321 has 8 divisors (see below), whose sum is σ = 177323040. Its totient is φ = 86690912.

The previous prime is 131514311. The next prime is 131514323. The reversal of 131514321 is 123415131.

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 131514321 - 2⁵ = 131514289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131514323) 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, 246015 + ... + 246548.

It is an arithmetic number, because the mean of its divisors is an integer number (22165380).

Almost surely, 2^131514321 is an apocalyptic number.

It is an amenable number.

131514321 is a deficient number, since it is larger than the sum of its proper divisors (45808719).

131514321 is an equidigital number, since it uses as much as digits as its factorization.

131514321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492655.

The product of its digits is 360, while the sum is 21.

The square root of 131514321 is about 11467.9693494533. The cubic root of 131514321 is about 508.5390987340.

Adding to 131514321 its reverse (123415131), we get a palindrome (254929452).

The spelling of 131514321 in words is "one hundred thirty-one million, five hundred fourteen thousand, three hundred twenty-one".