131985830 has 16 divisors (see below), whose sum is σ = 237837600. Its totient is φ = 52735872.

The previous prime is 131985797. The next prime is 131985859. The reversal of 131985830 is 38589131.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 16494.

It is an arithmetic number, because the mean of its divisors is an integer number (14864850).

Almost surely, 2^131985830 is an apocalyptic number.

131985830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131985830 is a deficient number, since it is larger than the sum of its proper divisors (105851770).

131985830 is a wasteful number, since it uses less digits than its factorization.

131985830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14623.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 131985830 is about 11488.5086064293. The cubic root of 131985830 is about 509.1461169739.

The spelling of 131985830 in words is "one hundred thirty-one million, nine hundred eighty-five thousand, eight hundred thirty".