261130767 has 8 divisors (see below), whose sum is σ = 348951600. Its totient is φ = 173698560.

The previous prime is 261130759. The next prime is 261130769. The reversal of 261130767 is 767031162.

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

It is not a de Polignac number, because 261130767 - 2³ = 261130759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261130769) 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 7 ways as a sum of consecutive naturals, for example, 95584 + ... + 98277.

It is an arithmetic number, because the mean of its divisors is an integer number (43618950).

Almost surely, 2^261130767 is an apocalyptic number.

261130767 is a deficient number, since it is larger than the sum of its proper divisors (87820833).

261130767 is a wasteful number, since it uses less digits than its factorization.

261130767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194313.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 261130767 is about 16159.5410516512. The cubic root of 261130767 is about 639.1743642154.

The spelling of 261130767 in words is "two hundred sixty-one million, one hundred thirty thousand, seven hundred sixty-seven".