132561798 has 32 divisors (see below), whose sum is σ = 272160000. Its totient is φ = 43027296.

The previous prime is 132561773. The next prime is 132561799. The reversal of 132561798 is 897165231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132561799) 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, 42703 + ... + 45701.

It is an arithmetic number, because the mean of its divisors is an integer number (8505000).

Almost surely, 2^132561798 is an apocalyptic number.

132561798 is an abundant number, since it is smaller than the sum of its proper divisors (139598202).

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

132561798 is a wasteful number, since it uses less digits than its factorization.

132561798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196.

The product of its digits is 90720, while the sum is 42.

The square root of 132561798 is about 11513.5484538868. The cubic root of 132561798 is about 509.8856567957.

The spelling of 132561798 in words is "one hundred thirty-two million, five hundred sixty-one thousand, seven hundred ninety-eight".