132243891 has 8 divisors (see below), whose sum is σ = 189888720. Its totient is φ = 81380832.

The previous prime is 132243889. The next prime is 132243899. The reversal of 132243891 is 198342231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 132243891 - 2¹ = 132243889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132243899) 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, 1695396 + ... + 1695473.

It is an arithmetic number, because the mean of its divisors is an integer number (23736090).

Almost surely, 2^132243891 is an apocalyptic number.

132243891 is a deficient number, since it is larger than the sum of its proper divisors (57644829).

132243891 is a wasteful number, since it uses less digits than its factorization.

132243891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390885.

The product of its digits is 10368, while the sum is 33.

The square root of 132243891 is about 11499.7343882370. The cubic root of 132243891 is about 509.4777314018.

The spelling of 132243891 in words is "one hundred thirty-two million, two hundred forty-three thousand, eight hundred ninety-one".