256460245 has 8 divisors (see below), whose sum is σ = 308163384. Its totient is φ = 204894144.

The previous prime is 256460227. The next prime is 256460257. The reversal of 256460245 is 542064652.

It can be written as a sum of positive squares in 4 ways, for example, as 99860049 + 156600196 = 9993^2 + 12514^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 256460245 - 2⁹ = 256459733 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 256460245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30094 + ... + 37663.

It is an arithmetic number, because the mean of its divisors is an integer number (38520423).

Almost surely, 2^256460245 is an apocalyptic number.

It is an amenable number.

256460245 is a deficient number, since it is larger than the sum of its proper divisors (51703139).

256460245 is an equidigital number, since it uses as much as digits as its factorization.

256460245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68519.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 256460245 is about 16014.3761976544. The cubic root of 256460245 is about 635.3407103737.

The spelling of 256460245 in words is "two hundred fifty-six million, four hundred sixty thousand, two hundred forty-five".