132720489 has 24 divisors (see below), whose sum is σ = 214005792. Its totient is φ = 78563520.

The previous prime is 132720481. The next prime is 132720493. The reversal of 132720489 is 984027231.

It is not a de Polignac number, because 132720489 - 2³ = 132720481 is a prime.

It is a super-2 number, since 2×132720489² = 35229456400798242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (132720481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11332 + ... + 19845.

It is an arithmetic number, because the mean of its divisors is an integer number (8916908).

Almost surely, 2^132720489 is an apocalyptic number.

It is an amenable number.

132720489 is a deficient number, since it is larger than the sum of its proper divisors (81285303).

132720489 is a wasteful number, since it uses less digits than its factorization.

132720489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31237 (or 31234 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 132720489 is about 11520.4378823029. The cubic root of 132720489 is about 510.0890386641.

The spelling of 132720489 in words is "one hundred thirty-two million, seven hundred twenty thousand, four hundred eighty-nine".