132868987 has 4 divisors (see below), whose sum is σ = 136109736. Its totient is φ = 129628240.

The previous prime is 132868963. The next prime is 132868993. The reversal of 132868987 is 789868231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789868231 = 23 ⋅34342097.

It is a cyclic number.

It is not a de Polignac number, because 132868987 - 2¹⁵ = 132836219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132868937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620313 + ... + 1620394.

It is an arithmetic number, because the mean of its divisors is an integer number (34027434).

Almost surely, 2^132868987 is an apocalyptic number.

132868987 is a deficient number, since it is larger than the sum of its proper divisors (3240749).

132868987 is an equidigital number, since it uses as much as digits as its factorization.

132868987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240748.

The product of its digits is 1161216, while the sum is 52.

The square root of 132868987 is about 11526.8810612412. The cubic root of 132868987 is about 510.2792101781.

The spelling of 132868987 in words is "one hundred thirty-two million, eight hundred sixty-eight thousand, nine hundred eighty-seven".