254511139 has 2 divisors, whose sum is σ = 254511140. Its totient is φ = 254511138.

The previous prime is 254511133. The next prime is 254511181. The reversal of 254511139 is 931115452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254511139 - 2⁵ = 254511107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254511139.

It is not a weakly prime, because it can be changed into another prime (254511133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127255569 + 127255570.

It is an arithmetic number, because the mean of its divisors is an integer number (127255570).

Almost surely, 2^254511139 is an apocalyptic number.

254511139 is a deficient number, since it is larger than the sum of its proper divisors (1).

254511139 is an equidigital number, since it uses as much as digits as its factorization.

254511139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 254511139 is about 15953.4052477833. The cubic root of 254511139 is about 633.7270790404.

The spelling of 254511139 in words is "two hundred fifty-four million, five hundred eleven thousand, one hundred thirty-nine".