163953190 has 16 divisors (see below), whose sum is σ = 297441792. Its totient is φ = 65064384.

The previous prime is 163953187. The next prime is 163953191. The reversal of 163953190 is 91359361.

163953190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163953190² = 53761297022352200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163953191) 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, 63279 + ... + 65818.

It is an arithmetic number, because the mean of its divisors is an integer number (18590112).

Almost surely, 2^163953190 is an apocalyptic number.

163953190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163953190 is a deficient number, since it is larger than the sum of its proper divisors (133488602).

163953190 is a wasteful number, since it uses less digits than its factorization.

163953190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129231.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 163953190 is about 12804.4207209854. The cubic root of 163953190 is about 547.3182844614.

The spelling of 163953190 in words is "one hundred sixty-three million, nine hundred fifty-three thousand, one hundred ninety".