260231591 has 8 divisors (see below), whose sum is σ = 273176064. Its totient is φ = 247423000.

The previous prime is 260231539. The next prime is 260231603. The reversal of 260231591 is 195132062.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260231591 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 (260230591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30035 + ... + 37716.

It is an arithmetic number, because the mean of its divisors is an integer number (34147008).

Almost surely, 2^260231591 is an apocalyptic number.

260231591 is a deficient number, since it is larger than the sum of its proper divisors (12944473).

260231591 is a wasteful number, since it uses less digits than its factorization.

260231591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67941.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 260231591 is about 16131.6952301982. The cubic root of 260231591 is about 638.4398775650.

The spelling of 260231591 in words is "two hundred sixty million, two hundred thirty-one thousand, five hundred ninety-one".