163001970 has 48 divisors (see below), whose sum is σ = 439508160. Its totient is φ = 43466544.

The previous prime is 163001963. The next prime is 163002023. The reversal of 163001970 is 79100361.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31110 + ... + 35969.

It is an arithmetic number, because the mean of its divisors is an integer number (9156420).

Almost surely, 2^163001970 is an apocalyptic number.

163001970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163001970 is an abundant number, since it is smaller than the sum of its proper divisors (276506190).

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

163001970 is an equidigital number, since it uses as much as digits as its factorization.

163001970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67101 (or 67089 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 163001970 is about 12767.2224857249. Note that the first 3 decimals coincide. The cubic root of 163001970 is about 546.2577577807.

The spelling of 163001970 in words is "one hundred sixty-three million, one thousand, nine hundred seventy".