261313795 has 32 divisors (see below), whose sum is σ = 333704448. Its totient is φ = 196172928.

The previous prime is 261313777. The next prime is 261313823. The reversal of 261313795 is 597313162.

261313795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 261313795 - 2⁵ = 261313763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 851032 + ... + 851338.

It is an arithmetic number, because the mean of its divisors is an integer number (10428264).

Almost surely, 2^261313795 is an apocalyptic number.

261313795 is a deficient number, since it is larger than the sum of its proper divisors (72390653).

261313795 is a wasteful number, since it uses less digits than its factorization.

261313795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499.

The product of its digits is 34020, while the sum is 37.

The square root of 261313795 is about 16165.2032155491. The cubic root of 261313795 is about 639.3236629560.

The spelling of 261313795 in words is "two hundred sixty-one million, three hundred thirteen thousand, seven hundred ninety-five".