131513454 has 12 divisors (see below), whose sum is σ = 284945856. Its totient is φ = 43837812.

The previous prime is 131513449. The next prime is 131513477. The reversal of 131513454 is 454315131.

It is a happy number.

131513454 is a `hidden beast` number, since 1 + 315 + 1 + 345 + 4 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3653134 + ... + 3653169.

It is an arithmetic number, because the mean of its divisors is an integer number (23745488).

Almost surely, 2^131513454 is an apocalyptic number.

131513454 is an abundant number, since it is smaller than the sum of its proper divisors (153432402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131513454 is a wasteful number, since it uses less digits than its factorization.

131513454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7306311 (or 7306308 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 131513454 is about 11467.9315484528. The cubic root of 131513454 is about 508.5379812274.

Adding to 131513454 its reverse (454315131), we get a palindrome (585828585).

The spelling of 131513454 in words is "one hundred thirty-one million, five hundred thirteen thousand, four hundred fifty-four".