256154126 has 4 divisors (see below), whose sum is σ = 384231192. Its totient is φ = 128077062.

The previous prime is 256154117. The next prime is 256154131. The reversal of 256154126 is 621451652.

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

It is a super-2 number, since 2×256154126² = 131229872533647752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256154092 and 256154101.

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 as a sum of consecutive naturals, namely, 64038530 + ... + 64038533.

It is an arithmetic number, because the mean of its divisors is an integer number (96057798).

Almost surely, 2^256154126 is an apocalyptic number.

256154126 is a deficient number, since it is larger than the sum of its proper divisors (128077066).

256154126 is a wasteful number, since it uses less digits than its factorization.

256154126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128077065.

The product of its digits is 14400, while the sum is 32.

The square root of 256154126 is about 16004.8157127785. The cubic root of 256154126 is about 635.0878221891.

The spelling of 256154126 in words is "two hundred fifty-six million, one hundred fifty-four thousand, one hundred twenty-six".