256490142341 has 8 divisors (see below), whose sum is σ = 256634427000. Its totient is φ = 256345905600.

The previous prime is 256490142313. The next prime is 256490142353. The reversal of 256490142341 is 143241094652.

It can be written as a sum of positive squares in 4 ways, for example, as 23245576225 + 233244566116 = 152465^2 + 482954^2 .

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 256490142341 - 2⁶ = 256490142277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256490142301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16122491 + ... + 16138391.

It is an arithmetic number, because the mean of its divisors is an integer number (32079303375).

Almost surely, 2^256490142341 is an apocalyptic number.

It is an amenable number.

256490142341 is a deficient number, since it is larger than the sum of its proper divisors (144284659).

256490142341 is a wasteful number, since it uses less digits than its factorization.

256490142341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23959.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 256490142341 in words is "two hundred fifty-six billion, four hundred ninety million, one hundred forty-two thousand, three hundred forty-one".