201172230 has 48 divisors (see below), whose sum is σ = 597770784. Its totient is φ = 45982080.

The previous prime is 201172211. The next prime is 201172249. The reversal of 201172230 is 32271102.

It is an interprime number because it is at equal distance from previous prime (201172211) and next prime (201172249).

It is a super-2 number, since 2×201172230² = 80940532246345800, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

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, 159031 + ... + 160290.

It is an arithmetic number, because the mean of its divisors is an integer number (12453558).

Almost surely, 2^201172230 is an apocalyptic number.

201172230 is an abundant number, since it is smaller than the sum of its proper divisors (396598554).

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

201172230 is a wasteful number, since it uses less digits than its factorization.

201172230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319341 (or 319338 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 201172230 is about 14183.5196619175. The cubic root of 201172230 is about 585.9438631202.

The spelling of 201172230 in words is "two hundred one million, one hundred seventy-two thousand, two hundred thirty".