254342681 has 2 divisors, whose sum is σ = 254342682. Its totient is φ = 254342680.

The previous prime is 254342663. The next prime is 254342701. The reversal of 254342681 is 186243452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254083600 + 259081 = 15940^2 + 509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254342681 is a prime.

It is a super-2 number, since 2×254342681² = 129380398756535522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (254342651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127171340 + 127171341.

It is an arithmetic number, because the mean of its divisors is an integer number (127171341).

Almost surely, 2^254342681 is an apocalyptic number.

It is an amenable number.

254342681 is a deficient number, since it is larger than the sum of its proper divisors (1).

254342681 is an equidigital number, since it uses as much as digits as its factorization.

254342681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 35.

The square root of 254342681 is about 15948.1246859936. The cubic root of 254342681 is about 633.5872292890.

The spelling of 254342681 in words is "two hundred fifty-four million, three hundred forty-two thousand, six hundred eighty-one".