260231761 has 4 divisors (see below), whose sum is σ = 269205300. Its totient is φ = 251258224.

The previous prime is 260231753. The next prime is 260231773. The reversal of 260231761 is 167132062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 167132062 = 2 ⋅83566031.

It can be written as a sum of positive squares in 2 ways, for example, as 126135361 + 134096400 = 11231^2 + 11580^2 .

It is a cyclic number.

It is not a de Polignac number, because 260231761 - 2³ = 260231753 is a prime.

It is a super-2 number, since 2×260231761² = 135441138866322242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260231731) 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 3 ways as a sum of consecutive naturals, for example, 4486726 + ... + 4486783.

It is an arithmetic number, because the mean of its divisors is an integer number (67301325).

Almost surely, 2^260231761 is an apocalyptic number.

It is an amenable number.

260231761 is a deficient number, since it is larger than the sum of its proper divisors (8973539).

260231761 is an equidigital number, since it uses as much as digits as its factorization.

260231761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973538.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 260231761 is about 16131.7004993274. The cubic root of 260231761 is about 638.4400165883.

The spelling of 260231761 in words is "two hundred sixty million, two hundred thirty-one thousand, seven hundred sixty-one".