163001900 has 18 divisors (see below), whose sum is σ = 353714340. Its totient is φ = 65200720.

The previous prime is 163001887. The next prime is 163001921. The reversal of 163001900 is 9100361.

It is a super-2 number, since 2×163001900² = 53139238807220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 814910 + ... + 815109.

Almost surely, 2^163001900 is an apocalyptic number.

163001900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163001900 is an abundant number, since it is smaller than the sum of its proper divisors (190712440).

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

163001900 is a wasteful number, since it uses less digits than its factorization.

163001900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630033 (or 1630026 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 163001900 is about 12767.2197443296. The cubic root of 163001900 is about 546.2576795852.

The spelling of 163001900 in words is "one hundred sixty-three million, one thousand, nine hundred".