254674645 has 4 divisors (see below), whose sum is σ = 305609580. Its totient is φ = 203739712.

The previous prime is 254674639. The next prime is 254674649. The reversal of 254674645 is 546476452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116165284 + 138509361 = 10778^2 + 11769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254674645 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254674649) 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, 25467460 + ... + 25467469.

It is an arithmetic number, because the mean of its divisors is an integer number (76402395).

Almost surely, 2^254674645 is an apocalyptic number.

It is an amenable number.

254674645 is a deficient number, since it is larger than the sum of its proper divisors (50934935).

254674645 is an equidigital number, since it uses as much as digits as its factorization.

254674645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50934934.

The product of its digits is 806400, while the sum is 43.

The square root of 254674645 is about 15958.5289108990. The cubic root of 254674645 is about 633.8627587581.

The spelling of 254674645 in words is "two hundred fifty-four million, six hundred seventy-four thousand, six hundred forty-five".