256148038 has 16 divisors (see below), whose sum is σ = 388499760. Its totient is φ = 126652896.

The previous prime is 256148029. The next prime is 256148047. The reversal of 256148038 is 830841652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (256148029) and next prime (256148047).

It is a super-2 number, since 2×256148038² = 131223634742498888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256147988 and 256148006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170820 + ... + 172312.

It is an arithmetic number, because the mean of its divisors is an integer number (24281235).

Almost surely, 2^256148038 is an apocalyptic number.

256148038 is a deficient number, since it is larger than the sum of its proper divisors (132351722).

256148038 is a wasteful number, since it uses less digits than its factorization.

256148038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 256148038 is about 16004.6255188930. The cubic root of 256148038 is about 635.0827907843.

The spelling of 256148038 in words is "two hundred fifty-six million, one hundred forty-eight thousand, thirty-eight".