201170250 has 64 divisors (see below), whose sum is σ = 557930880. Its totient is φ = 53643600.

The previous prime is 201170243. The next prime is 201170251. The reversal of 201170250 is 52071102.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201170251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8152 + ... + 21651.

It is an arithmetic number, because the mean of its divisors is an integer number (8717670).

Almost surely, 2^201170250 is an apocalyptic number.

201170250 is an abundant number, since it is smaller than the sum of its proper divisors (356760630).

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

201170250 is a wasteful number, since it uses less digits than its factorization.

201170250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29829 (or 29813 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 201170250 is about 14183.4498624277. The cubic root of 201170250 is about 585.9419407663.

The spelling of 201170250 in words is "two hundred one million, one hundred seventy thousand, two hundred fifty".