8254139 has 2 divisors, whose sum is σ = 8254140. Its totient is φ = 8254138.

The previous prime is 8254121. The next prime is 8254177. The reversal of 8254139 is 9314528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8254139 - 2²⁰ = 7205563 is a prime.

It is equal to p₅₅₅₇₃₇ and since 8254139 and 555737 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8254439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127069 + 4127070.

It is an arithmetic number, because the mean of its divisors is an integer number (4127070).

Almost surely, 2^8254139 is an apocalyptic number.

8254139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8254139 is an equidigital number, since it uses as much as digits as its factorization.

8254139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 8254139 is about 2873.0017403406. The cubic root of 8254139 is about 202.0957866796.

The spelling of 8254139 in words is "eight million, two hundred fifty-four thousand, one hundred thirty-nine".