256214312 has 16 divisors (see below), whose sum is σ = 481353300. Its totient is φ = 127853440.

The previous prime is 256214311. The next prime is 256214317. The reversal of 256214312 is 213412652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 244421956 + 11792356 = 15634^2 + 3434^2 .

It is not an unprimeable number, because it can be changed into a prime (256214311) 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, 27389 + ... + 35532.

Almost surely, 2^256214312 is an apocalyptic number.

It is an amenable number.

256214312 is a deficient number, since it is larger than the sum of its proper divisors (225138988).

256214312 is a wasteful number, since it uses less digits than its factorization.

256214312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63436 (or 63432 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 256214312 is about 16006.6958489252. The cubic root of 256214312 is about 635.1375583941.

Adding to 256214312 its reverse (213412652), we get a palindrome (469626964).

The spelling of 256214312 in words is "two hundred fifty-six million, two hundred fourteen thousand, three hundred twelve".