131788370 has 32 divisors (see below), whose sum is σ = 285379200. Its totient is φ = 42806016.

The previous prime is 131788331. The next prime is 131788373. The reversal of 131788370 is 73887131.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (131788373) by changing a digit.

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, 48215 + ... + 50874.

It is an arithmetic number, because the mean of its divisors is an integer number (8918100).

Almost surely, 2^131788370 is an apocalyptic number.

131788370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131788370 is an abundant number, since it is smaller than the sum of its proper divisors (153590830).

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

131788370 is a wasteful number, since it uses less digits than its factorization.

131788370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99122.

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

The square root of 131788370 is about 11479.9115850254. The cubic root of 131788370 is about 508.8920842235.

The spelling of 131788370 in words is "one hundred thirty-one million, seven hundred eighty-eight thousand, three hundred seventy".