168132639 has 8 divisors (see below), whose sum is σ = 224635392. Its totient is φ = 111859160.

The previous prime is 168132617. The next prime is 168132641. The reversal of 168132639 is 936231861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168132639 - 2⁸ = 168132383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168132597 and 168132606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168132689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55599 + ... + 58544.

It is an arithmetic number, because the mean of its divisors is an integer number (28079424).

Almost surely, 2^168132639 is an apocalyptic number.

168132639 is a deficient number, since it is larger than the sum of its proper divisors (56502753).

168132639 is a wasteful number, since it uses less digits than its factorization.

168132639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114637.

The product of its digits is 46656, while the sum is 39.

The square root of 168132639 is about 12966.5970477994. The cubic root of 168132639 is about 551.9300117367.

The spelling of 168132639 in words is "one hundred sixty-eight million, one hundred thirty-two thousand, six hundred thirty-nine".