132456789 has 20 divisors (see below), whose sum is σ = 200829024. Its totient is φ = 86982984.

The previous prime is 132456787. The next prime is 132456811. The reversal of 132456789 is 987654231.

132456789 is a `hidden beast` number, since 1 + 3 + 2 + 4 + 567 + 89 = 666.

It is not a de Polignac number, because 132456789 - 2¹ = 132456787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132456787) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6777 + ... + 17630.

Almost surely, 2^132456789 is an apocalyptic number.

It is an amenable number.

132456789 is a deficient number, since it is larger than the sum of its proper divisors (68372235).

132456789 is an equidigital number, since it uses as much as digits as its factorization.

132456789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24486 (or 24477 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 132456789 is about 11508.9873142688. The cubic root of 132456789 is about 509.7509857017.

The spelling of 132456789 in words is "one hundred thirty-two million, four hundred fifty-six thousand, seven hundred eighty-nine".