201081879 has 16 divisors (see below), whose sum is σ = 299628000. Its totient is φ = 133276608.

The previous prime is 201081877. The next prime is 201081913. The reversal of 201081879 is 978180102.

It is not a de Polignac number, because 201081879 - 2¹ = 201081877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201081877) 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, 16854 + ... + 26195.

It is an arithmetic number, because the mean of its divisors is an integer number (18726750).

Almost surely, 2^201081879 is an apocalyptic number.

201081879 is a deficient number, since it is larger than the sum of its proper divisors (98546121).

201081879 is a wasteful number, since it uses less digits than its factorization.

201081879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43231 (or 43225 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 201081879 is about 14180.3342344248. The cubic root of 201081879 is about 585.8561297693.

The spelling of 201081879 in words is "two hundred one million, eighty-one thousand, eight hundred seventy-nine".