254864163 has 4 divisors (see below), whose sum is σ = 339818888. Its totient is φ = 169909440.

The previous prime is 254864143. The next prime is 254864167. The reversal of 254864163 is 361468452.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 254864163 - 2¹⁰ = 254863139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254864167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42477358 + ... + 42477363.

It is an arithmetic number, because the mean of its divisors is an integer number (84954722).

Almost surely, 2^254864163 is an apocalyptic number.

254864163 is a deficient number, since it is larger than the sum of its proper divisors (84954725).

254864163 is an equidigital number, since it uses as much as digits as its factorization.

254864163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84954724.

The product of its digits is 138240, while the sum is 39.

The square root of 254864163 is about 15964.4656346525. The cubic root of 254864163 is about 634.0199509755.

The spelling of 254864163 in words is "two hundred fifty-four million, eight hundred sixty-four thousand, one hundred sixty-three".