201579955 has 16 divisors (see below), whose sum is σ = 246412800. Its totient is φ = 158277600.

The previous prime is 201579953. The next prime is 201579977. The reversal of 201579955 is 559975102.

It is a happy number.

It is not a de Polignac number, because 201579955 - 2¹ = 201579953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201579953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69280 + ... + 72130.

It is an arithmetic number, because the mean of its divisors is an integer number (15400800).

Almost surely, 2^201579955 is an apocalyptic number.

201579955 is a deficient number, since it is larger than the sum of its proper divisors (44832845).

201579955 is a wasteful number, since it uses less digits than its factorization.

201579955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114.

The product of its (nonzero) digits is 141750, while the sum is 43.

The square root of 201579955 is about 14197.8855820154. The cubic root of 201579955 is about 586.3394491045.

The spelling of 201579955 in words is "two hundred one million, five hundred seventy-nine thousand, nine hundred fifty-five".