256615341 has 8 divisors (see below), whose sum is σ = 342422784. Its totient is φ = 170942400.

The previous prime is 256615327. The next prime is 256615361. The reversal of 256615341 is 143516652.

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

It is not a de Polignac number, because 256615341 - 2⁶ = 256615277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256615361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29085 + ... + 36866.

It is an arithmetic number, because the mean of its divisors is an integer number (42802848).

Almost surely, 2^256615341 is an apocalyptic number.

It is an amenable number.

256615341 is a deficient number, since it is larger than the sum of its proper divisors (85807443).

256615341 is a wasteful number, since it uses less digits than its factorization.

256615341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67251.

The product of its digits is 21600, while the sum is 33.

The square root of 256615341 is about 16019.2178648023. The cubic root of 256615341 is about 635.4687600388.

The spelling of 256615341 in words is "two hundred fifty-six million, six hundred fifteen thousand, three hundred forty-one".