168132489 has 16 divisors (see below), whose sum is σ = 261654528. Its totient is φ = 94030992.

The previous prime is 168132467. The next prime is 168132491. The reversal of 168132489 is 984231861.

168132489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168132489 - 2¹¹ = 168130441 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168132489.

It is not an unprimeable number, because it can be changed into a prime (168132449) 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, 84187 + ... + 86160.

It is an arithmetic number, because the mean of its divisors is an integer number (16353408).

Almost surely, 2^168132489 is an apocalyptic number.

It is an amenable number.

168132489 is a deficient number, since it is larger than the sum of its proper divisors (93522039).

168132489 is a wasteful number, since it uses less digits than its factorization.

168132489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170404.

The product of its digits is 82944, while the sum is 42.

The square root of 168132489 is about 12966.5912637054. The cubic root of 168132489 is about 551.9298476014.

The spelling of 168132489 in words is "one hundred sixty-eight million, one hundred thirty-two thousand, four hundred eighty-nine".