132888981 has 16 divisors (see below), whose sum is σ = 181909760. Its totient is φ = 86261760.

The previous prime is 132888979. The next prime is 132888997. The reversal of 132888981 is 189888231.

It is not a de Polignac number, because 132888981 - 2¹ = 132888979 is a prime.

It is a super-2 number, since 2×132888981² = 35318962542436722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132888981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132888901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13461 + ... + 21141.

It is an arithmetic number, because the mean of its divisors is an integer number (11369360).

Almost surely, 2^132888981 is an apocalyptic number.

It is an amenable number.

132888981 is a deficient number, since it is larger than the sum of its proper divisors (49020779).

132888981 is an equidigital number, since it uses as much as digits as its factorization.

132888981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836.

The product of its digits is 221184, while the sum is 48.

The square root of 132888981 is about 11527.7483057187. The cubic root of 132888981 is about 510.3048043393.

It can be divided in two parts, 1328 and 88981, that added together give a palindrome (90309).

The spelling of 132888981 in words is "one hundred thirty-two million, eight hundred eighty-eight thousand, nine hundred eighty-one".