256141 has 4 divisors (see below), whose sum is σ = 260032. Its totient is φ = 252252.

The previous prime is 256133. The next prime is 256147. The reversal of 256141 is 141652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 256141 - 2³ = 256133 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845 + ... + 1978.

It is an arithmetic number, because the mean of its divisors is an integer number (65008).

2²⁵⁶¹⁴¹ is an apocalyptic number.

It is an amenable number.

256141 is a deficient number, since it is larger than the sum of its proper divisors (3891).

256141 is an equidigital number, since it uses as much as digits as its factorization.

256141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890.

The product of its digits is 240, while the sum is 19.

The square root of 256141 is about 506.1037443055. The cubic root of 256141 is about 63.5076974156.

Adding to 256141 its reverse (141652), we get a palindrome (397793).

The spelling of 256141 in words is "two hundred fifty-six thousand, one hundred forty-one".