256414546 has 4 divisors (see below), whose sum is σ = 384621822. Its totient is φ = 128207272.

The previous prime is 256414523. The next prime is 256414573. The reversal of 256414546 is 645414652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 246835521 + 9579025 = 15711^2 + 3095^2 .

It is a super-3 number, since 3×256414546³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 as a sum of consecutive naturals, namely, 64103635 + ... + 64103638.

Almost surely, 2^256414546 is an apocalyptic number.

256414546 is a deficient number, since it is larger than the sum of its proper divisors (128207276).

256414546 is a wasteful number, since it uses less digits than its factorization.

256414546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128207275.

The product of its digits is 115200, while the sum is 37.

The square root of 256414546 is about 16012.9493223453. The cubic root of 256414546 is about 635.3029707234.

The spelling of 256414546 in words is "two hundred fifty-six million, four hundred fourteen thousand, five hundred forty-six".