256165323 has 8 divisors (see below), whose sum is σ = 353331600. Its totient is φ = 164887968.

The previous prime is 256165241. The next prime is 256165331. The reversal of 256165323 is 323561652.

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

It is not a de Polignac number, because 256165323 - 2¹⁰ = 256164299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256165423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472128 + ... + 1472301.

It is an arithmetic number, because the mean of its divisors is an integer number (44166450).

Almost surely, 2^256165323 is an apocalyptic number.

256165323 is a deficient number, since it is larger than the sum of its proper divisors (97166277).

256165323 is a wasteful number, since it uses less digits than its factorization.

256165323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944461.

The product of its digits is 32400, while the sum is 33.

The square root of 256165323 is about 16005.1655099221. The cubic root of 256165323 is about 635.0970756996.

The spelling of 256165323 in words is "two hundred fifty-six million, one hundred sixty-five thousand, three hundred twenty-three".