201170939 has 4 divisors (see below), whose sum is σ = 201270240. Its totient is φ = 201071640.

The previous prime is 201170897. The next prime is 201170989. The reversal of 201170939 is 939071102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939071102 = 2 ⋅469535551.

It is a cyclic number.

It is not a de Polignac number, because 201170939 - 2¹⁶ = 201105403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201170989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46547 + ... + 50684.

It is an arithmetic number, because the mean of its divisors is an integer number (50317560).

Almost surely, 2^201170939 is an apocalyptic number.

201170939 is a deficient number, since it is larger than the sum of its proper divisors (99301).

201170939 is an equidigital number, since it uses as much as digits as its factorization.

201170939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99300.

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

The square root of 201170939 is about 14183.4741512790. The cubic root of 201170939 is about 585.9426097081.

The spelling of 201170939 in words is "two hundred one million, one hundred seventy thousand, nine hundred thirty-nine".