254545391 has 2 divisors, whose sum is σ = 254545392. Its totient is φ = 254545390.

The previous prime is 254545367. The next prime is 254545397. The reversal of 254545391 is 193545452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254545391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254545397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127272695 + 127272696.

It is an arithmetic number, because the mean of its divisors is an integer number (127272696).

Almost surely, 2^254545391 is an apocalyptic number.

254545391 is a deficient number, since it is larger than the sum of its proper divisors (1).

254545391 is an equidigital number, since it uses as much as digits as its factorization.

254545391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The square root of 254545391 is about 15954.4787128881. The cubic root of 254545391 is about 633.7555066714.

The spelling of 254545391 in words is "two hundred fifty-four million, five hundred forty-five thousand, three hundred ninety-one".