260809201 has 4 divisors (see below), whose sum is σ = 262120000. Its totient is φ = 259498404.

The previous prime is 260809139. The next prime is 260809243. The reversal of 260809201 is 102908062.

It is a happy number.

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 260809201 - 2²¹ = 258712049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260809201.

It is not an unprimeable number, because it can be changed into a prime (260806201) 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, 655101 + ... + 655498.

It is an arithmetic number, because the mean of its divisors is an integer number (65530000).

Almost surely, 2^260809201 is an apocalyptic number.

It is an amenable number.

260809201 is a deficient number, since it is larger than the sum of its proper divisors (1310799).

260809201 is a wasteful number, since it uses less digits than its factorization.

260809201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310798.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 260809201 is about 16149.5882610053. The cubic root of 260809201 is about 638.9118888635.

The spelling of 260809201 in words is "two hundred sixty million, eight hundred nine thousand, two hundred one".