201080761 has 6 divisors (see below), whose sum is σ = 233910330. Its totient is φ = 172354896.

The previous prime is 201080753. The next prime is 201080773. The reversal of 201080761 is 167080102.

It can be written as a sum of positive squares in only one way, i.e., 107765161 + 93315600 = 10381^2 + 9660^2 .

It is not a de Polignac number, because 201080761 - 2³ = 201080753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201080701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2051796 + ... + 2051893.

It is an arithmetic number, because the mean of its divisors is an integer number (38985055).

Almost surely, 2^201080761 is an apocalyptic number.

It is an amenable number.

201080761 is a deficient number, since it is larger than the sum of its proper divisors (32829569).

201080761 is an equidigital number, since it uses as much as digits as its factorization.

201080761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103703 (or 4103696 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 201080761 is about 14180.2948135785. The cubic root of 201080761 is about 585.8550439954.

The spelling of 201080761 in words is "two hundred one million, eighty thousand, seven hundred sixty-one".