254359643 has 2 divisors, whose sum is σ = 254359644. Its totient is φ = 254359642.

The previous prime is 254359603. The next prime is 254359649. The reversal of 254359643 is 346953452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254359643 - 2⁶ = 254359579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254359643.

It is not a weakly prime, because it can be changed into another prime (254359649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127179821 + 127179822.

It is an arithmetic number, because the mean of its divisors is an integer number (127179822).

Almost surely, 2^254359643 is an apocalyptic number.

254359643 is a deficient number, since it is larger than the sum of its proper divisors (1).

254359643 is an equidigital number, since it uses as much as digits as its factorization.

254359643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 41.

The square root of 254359643 is about 15948.6564637903. The cubic root of 254359643 is about 633.6013135258.

The spelling of 254359643 in words is "two hundred fifty-four million, three hundred fifty-nine thousand, six hundred forty-three".