131515130 has 32 divisors (see below), whose sum is σ = 243233280. Its totient is φ = 51179200.

The previous prime is 131515123. The next prime is 131515183. The reversal of 131515130 is 31515131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58487 + ... + 60693.

It is an arithmetic number, because the mean of its divisors is an integer number (7601040).

Almost surely, 2^131515130 is an apocalyptic number.

131515130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131515130 is a deficient number, since it is larger than the sum of its proper divisors (111718150).

131515130 is a wasteful number, since it uses less digits than its factorization.

131515130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 131515130 is about 11468.0046215547. The cubic root of 131515130 is about 508.5401414780.

Subtracting from 131515130 its reverse (31515131), we obtain a palindrome (99999999).

It can be divided in two parts, 13151 and 5130, that added together give a palindrome (18281).

The spelling of 131515130 in words is "one hundred thirty-one million, five hundred fifteen thousand, one hundred thirty".