163825790 has 16 divisors (see below), whose sum is σ = 310407120. Its totient is φ = 62081280.

The previous prime is 163825777. The next prime is 163825799. The reversal of 163825790 is 97528361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163825799) 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, 430931 + ... + 431310.

It is an arithmetic number, because the mean of its divisors is an integer number (19400445).

Almost surely, 2^163825790 is an apocalyptic number.

163825790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163825790 is a deficient number, since it is larger than the sum of its proper divisors (146581330).

163825790 is a wasteful number, since it uses less digits than its factorization.

163825790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862267.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 163825790 is about 12799.4449098389. Note that the first 3 decimals coincide. The cubic root of 163825790 is about 547.1764829751.

The spelling of 163825790 in words is "one hundred sixty-three million, eight hundred twenty-five thousand, seven hundred ninety".