256016045 has 16 divisors (see below), whose sum is σ = 317113920. Its totient is φ = 198321024.

The previous prime is 256016029. The next prime is 256016053. The reversal of 256016045 is 540610652.

It is a cyclic number.

It is not a de Polignac number, because 256016045 - 2⁴ = 256016029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256015999 and 256016017.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13289 + ... + 26241.

It is an arithmetic number, because the mean of its divisors is an integer number (19819620).

Almost surely, 2^256016045 is an apocalyptic number.

It is an amenable number.

256016045 is a deficient number, since it is larger than the sum of its proper divisors (61097875).

256016045 is a wasteful number, since it uses less digits than its factorization.

256016045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13084.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 256016045 is about 16000.5013983937. The cubic root of 256016045 is about 634.9736860570.

Adding to 256016045 its reverse (540610652), we get a palindrome (796626697).

The spelling of 256016045 in words is "two hundred fifty-six million, sixteen thousand, forty-five".