131913500 has 24 divisors (see below), whose sum is σ = 288100176. Its totient is φ = 52765200.

The previous prime is 131913497. The next prime is 131913521. The reversal of 131913500 is 5319131.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 131414 + ... + 132413.

It is an arithmetic number, because the mean of its divisors is an integer number (12004174).

Almost surely, 2^131913500 is an apocalyptic number.

131913500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131913500 is an abundant number, since it is smaller than the sum of its proper divisors (156186676).

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

131913500 is a wasteful number, since it uses less digits than its factorization.

131913500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263846 (or 263834 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 131913500 is about 11485.3602468534. The cubic root of 131913500 is about 509.0530936854.

The spelling of 131913500 in words is "one hundred thirty-one million, nine hundred thirteen thousand, five hundred".