131514451 has 4 divisors (see below), whose sum is σ = 131581672. Its totient is φ = 131447232.

The previous prime is 131514421. The next prime is 131514479. The reversal of 131514451 is 154415131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131514451 - 2⁷ = 131514323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131514421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30585 + ... + 34618.

It is an arithmetic number, because the mean of its divisors is an integer number (32895418).

Almost surely, 2^131514451 is an apocalyptic number.

131514451 is a deficient number, since it is larger than the sum of its proper divisors (67221).

131514451 is an equidigital number, since it uses as much as digits as its factorization.

131514451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67220.

The product of its digits is 1200, while the sum is 25.

The square root of 131514451 is about 11467.9750174126. The cubic root of 131514451 is about 508.5392662952.

Adding to 131514451 its reverse (154415131), we get a palindrome (285929582).

The spelling of 131514451 in words is "one hundred thirty-one million, five hundred fourteen thousand, four hundred fifty-one".