261296113 has 8 divisors (see below), whose sum is σ = 296206400. Its totient is φ = 228501648.

The previous prime is 261296093. The next prime is 261296129. The reversal of 261296113 is 311692162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261296113 - 2⁵ = 261296081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261296153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528693 + ... + 529186.

It is an arithmetic number, because the mean of its divisors is an integer number (37025800).

Almost surely, 2^261296113 is an apocalyptic number.

It is an amenable number.

261296113 is a deficient number, since it is larger than the sum of its proper divisors (34910287).

261296113 is a wasteful number, since it uses less digits than its factorization.

261296113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057911.

The product of its digits is 3888, while the sum is 31.

The square root of 261296113 is about 16164.6562908093. The cubic root of 261296113 is about 639.3092425207.

The spelling of 261296113 in words is "two hundred sixty-one million, two hundred ninety-six thousand, one hundred thirteen".