131889678 has 16 divisors (see below), whose sum is σ = 277662720. Its totient is φ = 41649336.

The previous prime is 131889647. The next prime is 131889679. The reversal of 131889678 is 876988131.

It is a self number, because there is not a number n which added to its sum of digits gives 131889678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131889679) 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, 578350 + ... + 578577.

It is an arithmetic number, because the mean of its divisors is an integer number (17353920).

Almost surely, 2^131889678 is an apocalyptic number.

131889678 is an abundant number, since it is smaller than the sum of its proper divisors (145773042).

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

131889678 is a wasteful number, since it uses less digits than its factorization.

131889678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156951.

The product of its digits is 580608, while the sum is 51.

The square root of 131889678 is about 11484.3231406992. The cubic root of 131889678 is about 509.0224488744.

The spelling of 131889678 in words is "one hundred thirty-one million, eight hundred eighty-nine thousand, six hundred seventy-eight".