131788730 has 16 divisors (see below), whose sum is σ = 237510144. Its totient is φ = 52650960.

The previous prime is 131788721. The next prime is 131788747. The reversal of 131788730 is 37887131.

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, 995 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (14844384).

Almost surely, 2^131788730 is an apocalyptic number.

131788730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131788730 is a deficient number, since it is larger than the sum of its proper divisors (105721414).

131788730 is a wasteful number, since it uses less digits than its factorization.

131788730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16141.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 131788730 is about 11479.9272645779. The cubic root of 131788730 is about 508.8925475951.

The spelling of 131788730 in words is "one hundred thirty-one million, seven hundred eighty-eight thousand, seven hundred thirty".