260361813 has 4 divisors (see below), whose sum is σ = 347149088. Its totient is φ = 173574540.

The previous prime is 260361809. The next prime is 260361853. The reversal of 260361813 is 318163062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 260361813 - 2² = 260361809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260361853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43393633 + ... + 43393638.

It is an arithmetic number, because the mean of its divisors is an integer number (86787272).

Almost surely, 2^260361813 is an apocalyptic number.

It is an amenable number.

260361813 is a deficient number, since it is larger than the sum of its proper divisors (86787275).

260361813 is an equidigital number, since it uses as much as digits as its factorization.

260361813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86787274.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 260361813 is about 16135.7309409893. The cubic root of 260361813 is about 638.5463533051.

The spelling of 260361813 in words is "two hundred sixty million, three hundred sixty-one thousand, eight hundred thirteen".