260658221 has 4 divisors (see below), whose sum is σ = 262533600. Its totient is φ = 258782844.

The previous prime is 260658179. The next prime is 260658227. The reversal of 260658221 is 122856062.

260658221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260658221 - 2²² = 256463917 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 (260658227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937481 + ... + 937758.

It is an arithmetic number, because the mean of its divisors is an integer number (65633400).

Almost surely, 2^260658221 is an apocalyptic number.

It is an amenable number.

260658221 is a deficient number, since it is larger than the sum of its proper divisors (1875379).

260658221 is a wasteful number, since it uses less digits than its factorization.

260658221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875378.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 260658221 is about 16144.9131617361. The cubic root of 260658221 is about 638.7885783663.

The spelling of 260658221 in words is "two hundred sixty million, six hundred fifty-eight thousand, two hundred twenty-one".