256314523 has 4 divisors (see below), whose sum is σ = 256382200. Its totient is φ = 256246848.

The previous prime is 256314521. The next prime is 256314629. The reversal of 256314523 is 325413652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256314523 - 2¹ = 256314521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256314521) 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, 27798 + ... + 35851.

It is an arithmetic number, because the mean of its divisors is an integer number (64095550).

Almost surely, 2^256314523 is an apocalyptic number.

256314523 is a deficient number, since it is larger than the sum of its proper divisors (67677).

256314523 is an equidigital number, since it uses as much as digits as its factorization.

256314523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67676.

The product of its digits is 21600, while the sum is 31.

The square root of 256314523 is about 16009.8258266603. The cubic root of 256314523 is about 635.2203529801.

The spelling of 256314523 in words is "two hundred fifty-six million, three hundred fourteen thousand, five hundred twenty-three".