165163250 has 32 divisors (see below), whose sum is σ = 353358720. Its totient is φ = 56626800.

The previous prime is 165163249. The next prime is 165163259. The reversal of 165163250 is 52361561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165163259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45440 + ... + 48939.

It is an arithmetic number, because the mean of its divisors is an integer number (11042460).

Almost surely, 2^165163250 is an apocalyptic number.

165163250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165163250 is an abundant number, since it is smaller than the sum of its proper divisors (188195470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165163250 is an equidigital number, since it uses as much as digits as its factorization.

165163250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94403 (or 94393 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 165163250 is about 12851.5855052986. The cubic root of 165163250 is about 548.6614834317.

The spelling of 165163250 in words is "one hundred sixty-five million, one hundred sixty-three thousand, two hundred fifty".