254349189 has 18 divisors (see below), whose sum is σ = 390279890. Its totient is φ = 159590016.

The previous prime is 254349167. The next prime is 254349191. The reversal of 254349189 is 981943452.

254349189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 104898564 + 149450625 = 10242^2 + 12225^2 .

It is not a de Polignac number, because 254349189 - 2⁸ = 254348933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254349119) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46294 + ... + 51495.

Almost surely, 2^254349189 is an apocalyptic number.

It is an amenable number.

254349189 is a deficient number, since it is larger than the sum of its proper divisors (135930701).

254349189 is a wasteful number, since it uses less digits than its factorization.

254349189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97829 (or 97809 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 254349189 is about 15948.3287212172. The cubic root of 254349189 is about 633.5926332195.

The spelling of 254349189 in words is "two hundred fifty-four million, three hundred forty-nine thousand, one hundred eighty-nine".