256227146 has 16 divisors (see below), whose sum is σ = 451118976. Its totient is φ = 106843536.

The previous prime is 256227137. The next prime is 256227157. The reversal of 256227146 is 641722652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246806 + ... + 247841.

It is an arithmetic number, because the mean of its divisors is an integer number (28194936).

Almost surely, 2^256227146 is an apocalyptic number.

256227146 is a deficient number, since it is larger than the sum of its proper divisors (194891830).

256227146 is a wasteful number, since it uses less digits than its factorization.

256227146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494693.

The product of its digits is 40320, while the sum is 35.

The square root of 256227146 is about 16007.0967386344. The cubic root of 256227146 is about 635.1481630832.

Adding to 256227146 its reverse (641722652), we get a palindrome (897949798).

It can be divided in two parts, 25622 and 7146, that added together give a 15-th power (32768 = 2¹⁵).

The spelling of 256227146 in words is "two hundred fifty-six million, two hundred twenty-seven thousand, one hundred forty-six".