256414545 has 32 divisors (see below), whose sum is σ = 458524800. Its totient is φ = 135951552.

The previous prime is 256414523. The next prime is 256414573. The reversal of 256414545 is 545414652.

256414545 is a `hidden beast` number, since 2 + 5 + 641 + 4 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 256414545 - 2¹⁴ = 256398161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17866 + ... + 28844.

It is an arithmetic number, because the mean of its divisors is an integer number (14328900).

Almost surely, 2^256414545 is an apocalyptic number.

It is an amenable number.

256414545 is a deficient number, since it is larger than the sum of its proper divisors (202110255).

256414545 is a wasteful number, since it uses less digits than its factorization.

256414545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11166 (or 11160 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 256414545 is about 16012.9492911206. The cubic root of 256414545 is about 635.3029698975.

The spelling of 256414545 in words is "two hundred fifty-six million, four hundred fourteen thousand, five hundred forty-five".