256072126 has 8 divisors (see below), whose sum is σ = 385757424. Its totient is φ = 127486320.

The previous prime is 256072123. The next prime is 256072127. The reversal of 256072126 is 621270652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256072123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274290 + ... + 275221.

It is an arithmetic number, because the mean of its divisors is an integer number (48219678).

Almost surely, 2^256072126 is an apocalyptic number.

256072126 is a deficient number, since it is larger than the sum of its proper divisors (129685298).

256072126 is a wasteful number, since it uses less digits than its factorization.

256072126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549746.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 256072126 is about 16002.2537787650. The cubic root of 256072126 is about 635.0200469005.

The spelling of 256072126 in words is "two hundred fifty-six million, seventy-two thousand, one hundred twenty-six".