132891870 has 32 divisors (see below), whose sum is σ = 319243680. Its totient is φ = 35404160.

The previous prime is 132891821. The next prime is 132891883. The reversal of 132891870 is 78198231.

It is a super-2 number, since 2×132891870² = 35320498224193800, which contains 22 as substring.

It is a congruent number.

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, 61000 + ... + 63140.

It is an arithmetic number, because the mean of its divisors is an integer number (9976365).

Almost surely, 2^132891870 is an apocalyptic number.

132891870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

132891870 is an abundant number, since it is smaller than the sum of its proper divisors (186351810).

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

132891870 is a wasteful number, since it uses less digits than its factorization.

132891870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 132891870 is about 11527.8736113821. The cubic root of 132891870 is about 510.3085023131.

It can be divided in two parts, 132 and 891870, that multiplied together give a triangular number (117726840 = T₁₅₃₄₄).

The spelling of 132891870 in words is "one hundred thirty-two million, eight hundred ninety-one thousand, eight hundred seventy".