260205187 has 8 divisors (see below), whose sum is σ = 296202240. Its totient is φ = 226265160.

The previous prime is 260205167. The next prime is 260205193. The reversal of 260205187 is 781502062.

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

It is a de Polignac number, because none of the positive numbers 2^k-260205187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260205167) 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, 513987 + ... + 514492.

It is an arithmetic number, because the mean of its divisors is an integer number (37025280).

Almost surely, 2^260205187 is an apocalyptic number.

260205187 is a deficient number, since it is larger than the sum of its proper divisors (35997053).

260205187 is a wasteful number, since it uses less digits than its factorization.

260205187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028513.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 260205187 is about 16130.8768205575. The cubic root of 260205187 is about 638.4182840597.

The spelling of 260205187 in words is "two hundred sixty million, two hundred five thousand, one hundred eighty-seven".