254241643 has 2 divisors, whose sum is σ = 254241644. Its totient is φ = 254241642.

The previous prime is 254241629. The next prime is 254241677. The reversal of 254241643 is 346142452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254241643 - 2¹³ = 254233451 is a prime.

It is not a weakly prime, because it can be changed into another prime (254241683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127120821 + 127120822.

It is an arithmetic number, because the mean of its divisors is an integer number (127120822).

Almost surely, 2^254241643 is an apocalyptic number.

254241643 is a deficient number, since it is larger than the sum of its proper divisors (1).

254241643 is an equidigital number, since it uses as much as digits as its factorization.

254241643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 31.

The square root of 254241643 is about 15944.9566634720. The cubic root of 254241643 is about 633.5033203608.

The spelling of 254241643 in words is "two hundred fifty-four million, two hundred forty-one thousand, six hundred forty-three".