254113309 has 2 divisors, whose sum is σ = 254113310. Its totient is φ = 254113308.

The previous prime is 254113291. The next prime is 254113313. The reversal of 254113309 is 903311452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133333209 + 120780100 = 11547^2 + 10990^2 .

It is a cyclic number.

It is not a de Polignac number, because 254113309 - 2²¹ = 252016157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254113319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127056654 + 127056655.

It is an arithmetic number, because the mean of its divisors is an integer number (127056655).

Almost surely, 2^254113309 is an apocalyptic number.

It is an amenable number.

254113309 is a deficient number, since it is larger than the sum of its proper divisors (1).

254113309 is an equidigital number, since it uses as much as digits as its factorization.

254113309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 254113309 is about 15940.9318736390. The cubic root of 254113309 is about 633.3967108937.

The spelling of 254113309 in words is "two hundred fifty-four million, one hundred thirteen thousand, three hundred nine".