256125153 has 16 divisors (see below), whose sum is σ = 349630400. Its totient is φ = 166726080.

The previous prime is 256125109. The next prime is 256125161. The reversal of 256125153 is 351521652.

It is a happy number.

It is not a de Polignac number, because 256125153 - 2¹³ = 256116961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256125153.

It is not an unprimeable number, because it can be changed into a prime (256125173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20403 + ... + 30471.

It is an arithmetic number, because the mean of its divisors is an integer number (21851900).

Almost surely, 2^256125153 is an apocalyptic number.

It is an amenable number.

256125153 is a deficient number, since it is larger than the sum of its proper divisors (93505247).

256125153 is a wasteful number, since it uses less digits than its factorization.

256125153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10272.

The product of its digits is 9000, while the sum is 30.

The square root of 256125153 is about 16003.9105533616. The cubic root of 256125153 is about 635.0638768486.

The spelling of 256125153 in words is "two hundred fifty-six million, one hundred twenty-five thousand, one hundred fifty-three".