131883378 has 16 divisors (see below), whose sum is σ = 287745696. Its totient is φ = 39964640.

The previous prime is 131883373. The next prime is 131883379. The reversal of 131883378 is 873388131.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (131883373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999051 + ... + 999182.

It is an arithmetic number, because the mean of its divisors is an integer number (17984106).

Almost surely, 2^131883378 is an apocalyptic number.

131883378 is an abundant number, since it is smaller than the sum of its proper divisors (155862318).

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

131883378 is a wasteful number, since it uses less digits than its factorization.

131883378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998249.

The product of its digits is 96768, while the sum is 42.

The square root of 131883378 is about 11484.0488504708. The cubic root of 131883378 is about 509.0143438871.

The spelling of 131883378 in words is "one hundred thirty-one million, eight hundred eighty-three thousand, three hundred seventy-eight".