86653139 has 2 divisors, whose sum is σ = 86653140. Its totient is φ = 86653138.

The previous prime is 86653109. The next prime is 86653163. The reversal of 86653139 is 93135668.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86653139 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86653096 and 86653105.

It is not a weakly prime, because it can be changed into another prime (86653109) 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, 43326569 + 43326570.

It is an arithmetic number, because the mean of its divisors is an integer number (43326570).

Almost surely, 2^86653139 is an apocalyptic number.

86653139 is a deficient number, since it is larger than the sum of its proper divisors (1).

86653139 is an equidigital number, since it uses as much as digits as its factorization.

86653139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 86653139 is about 9308.7667819105. The cubic root of 86653139 is about 442.5151051905.

The spelling of 86653139 in words is "eighty-six million, six hundred fifty-three thousand, one hundred thirty-nine".