131889570 has 32 divisors (see below), whose sum is σ = 335155968. Its totient is φ = 33101568.

The previous prime is 131889547. The next prime is 131889581. The reversal of 131889570 is 75988131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128794 + ... + 129813.

It is an arithmetic number, because the mean of its divisors is an integer number (10473624).

Almost surely, 2^131889570 is an apocalyptic number.

131889570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131889570 is an abundant number, since it is smaller than the sum of its proper divisors (203266398).

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

131889570 is a wasteful number, since it uses less digits than its factorization.

131889570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258634.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 131889570 is about 11484.3184386362. The cubic root of 131889570 is about 509.0223099339.

The spelling of 131889570 in words is "one hundred thirty-one million, eight hundred eighty-nine thousand, five hundred seventy".