4145256 has 40 divisors (see below), whose sum is σ = 11612370. Its totient is φ = 1381536.

The previous prime is 4145213. The next prime is 4145257. The reversal of 4145256 is 6525414.

It can be written as a sum of positive squares in only one way, i.e., 4137156 + 8100 = 2034^2 + 90^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4145257) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2551 + ... + 3846.

Almost surely, 2^4145256 is an apocalyptic number.

It is an amenable number.

4145256 is an abundant number, since it is smaller than the sum of its proper divisors (7467114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4145256 is a wasteful number, since it uses less digits than its factorization.

4145256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6402 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 4145256 is about 2035.9901767936. The cubic root of 4145256 is about 160.6388003606.

The spelling of 4145256 in words is "four million, one hundred forty-five thousand, two hundred fifty-six".