256164141 has 8 divisors (see below), whose sum is σ = 341626464. Its totient is φ = 170738960.

The previous prime is 256164131. The next prime is 256164149. The reversal of 256164141 is 141461652.

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

It is a cyclic number.

It is not a de Polignac number, because 256164141 - 2¹⁵ = 256131373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256164099 and 256164108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256164149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20071 + ... + 30251.

It is an arithmetic number, because the mean of its divisors is an integer number (42703308).

Almost surely, 2^256164141 is an apocalyptic number.

It is an amenable number.

256164141 is a deficient number, since it is larger than the sum of its proper divisors (85462323).

256164141 is a wasteful number, since it uses less digits than its factorization.

256164141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18571.

The product of its digits is 5760, while the sum is 30.

The square root of 256164141 is about 16005.1285843007. The cubic root of 256164141 is about 635.0960988749.

The spelling of 256164141 in words is "two hundred fifty-six million, one hundred sixty-four thousand, one hundred forty-one".