256154125 has 16 divisors (see below), whose sum is σ = 322141248. Its totient is φ = 203346000.

The previous prime is 256154117. The next prime is 256154131. The reversal of 256154125 is 521451652.

It is not a de Polignac number, because 256154125 - 2³ = 256154117 is a prime.

It is a super-2 number, since 2×256154125² = 131229871509031250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 8554 + ... + 24196.

It is an arithmetic number, because the mean of its divisors is an integer number (20133828).

Almost surely, 2^256154125 is an apocalyptic number.

256154125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256154125 is a deficient number, since it is larger than the sum of its proper divisors (65987123).

256154125 is a wasteful number, since it uses less digits than its factorization.

256154125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15789 (or 15779 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 256154125 is about 16004.8156815379. The cubic root of 256154125 is about 635.0878213626.

The spelling of 256154125 in words is "two hundred fifty-six million, one hundred fifty-four thousand, one hundred twenty-five".