254372189 has 2 divisors, whose sum is σ = 254372190. Its totient is φ = 254372188.

The previous prime is 254372177. The next prime is 254372221. The reversal of 254372189 is 981273452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252269689 + 2102500 = 15883^2 + 1450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254372189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254372119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127186094 + 127186095.

It is an arithmetic number, because the mean of its divisors is an integer number (127186095).

Almost surely, 2^254372189 is an apocalyptic number.

It is an amenable number.

254372189 is a deficient number, since it is larger than the sum of its proper divisors (1).

254372189 is an equidigital number, since it uses as much as digits as its factorization.

254372189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 254372189 is about 15949.0497836078. The cubic root of 254372189 is about 633.6117305759.

It can be divided in two parts, 2 and 54372189, that multiplied together give a triangular number (108744378 = T₁₄₇₄₇).

The spelling of 254372189 in words is "two hundred fifty-four million, three hundred seventy-two thousand, one hundred eighty-nine".