201080901 has 16 divisors (see below), whose sum is σ = 309124224. Its totient is φ = 113885184.

The previous prime is 201080843. The next prime is 201080921. The reversal of 201080901 is 109080102.

It is not a de Polignac number, because 201080901 - 2⁷ = 201080773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201080921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39996 + ... + 44741.

It is an arithmetic number, because the mean of its divisors is an integer number (19320264).

Almost surely, 2^201080901 is an apocalyptic number.

201080901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201080901 is a deficient number, since it is larger than the sum of its proper divisors (108043323).

201080901 is a wasteful number, since it uses less digits than its factorization.

201080901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84860.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 201080901 is about 14180.2997500053. The cubic root of 201080901 is about 585.8551799601.

The spelling of 201080901 in words is "two hundred one million, eighty thousand, nine hundred one".