201399170 has 32 divisors (see below), whose sum is σ = 438680448. Its totient is φ = 64988928.

The previous prime is 201399139. The next prime is 201399181. The reversal of 201399170 is 71993102.

It is a happy number.

201399170 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83432 + ... + 85811.

It is an arithmetic number, because the mean of its divisors is an integer number (13708764).

Almost surely, 2^201399170 is an apocalyptic number.

201399170 is an abundant number, since it is smaller than the sum of its proper divisors (237281278).

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

201399170 is a wasteful number, since it uses less digits than its factorization.

201399170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169274.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 201399170 is about 14191.5175368951. The cubic root of 201399170 is about 586.1641124218.

The spelling of 201399170 in words is "two hundred one million, three hundred ninety-nine thousand, one hundred seventy".