165163245 has 32 divisors (see below), whose sum is σ = 301335552. Its totient is φ = 76526592.

The previous prime is 165163213. The next prime is 165163249. The reversal of 165163245 is 542361561.

165163245 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 165163245 - 2⁵ = 165163213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165163249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21597 + ... + 28226.

It is an arithmetic number, because the mean of its divisors is an integer number (9416736).

Almost surely, 2^165163245 is an apocalyptic number.

165163245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165163245 is a deficient number, since it is larger than the sum of its proper divisors (136172307).

165163245 is a wasteful number, since it uses less digits than its factorization.

165163245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49861.

The product of its digits is 21600, while the sum is 33.

The square root of 165163245 is about 12851.5853107700. The cubic root of 165163245 is about 548.6614778951.

The spelling of 165163245 in words is "one hundred sixty-five million, one hundred sixty-three thousand, two hundred forty-five".