132978489 has 16 divisors (see below), whose sum is σ = 207347712. Its totient is φ = 74220048.

The previous prime is 132978467. The next prime is 132978509. The reversal of 132978489 is 984879231.

It is not a de Polignac number, because 132978489 - 2¹² = 132974393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132978089) 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, 72729 + ... + 74534.

It is an arithmetic number, because the mean of its divisors is an integer number (12959232).

Almost surely, 2^132978489 is an apocalyptic number.

It is an amenable number.

132978489 is a deficient number, since it is larger than the sum of its proper divisors (74369223).

132978489 is a wasteful number, since it uses less digits than its factorization.

132978489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147316.

The product of its digits is 870912, while the sum is 51.

The square root of 132978489 is about 11531.6299368303. The cubic root of 132978489 is about 510.4193513613.

The spelling of 132978489 in words is "one hundred thirty-two million, nine hundred seventy-eight thousand, four hundred eighty-nine".