215163000 has 256 divisors, whose sum is σ = 804585600. Its totient is φ = 52876800.

The previous prime is 215162993. The next prime is 215163001. The reversal of 215163000 is 361512.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215163001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350694 + ... + 351306.

Almost surely, 2^215163000 is an apocalyptic number.

215163000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215163000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402292800).

215163000 is an abundant number, since it is smaller than the sum of its proper divisors (589422600).

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

215163000 is a wasteful number, since it uses less digits than its factorization.

215163000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 215163000 is about 14668.4354993980. The cubic root of 215163000 is about 599.2239967977.

The spelling of 215163000 in words is "two hundred fifteen million, one hundred sixty-three thousand".