135627839 has 2 divisors, whose sum is σ = 135627840. Its totient is φ = 135627838.

The previous prime is 135627823. The next prime is 135627841. The reversal of 135627839 is 938726531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135627839 - 2⁴ = 135627823 is a prime.

Together with 135627841, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135627839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135627859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67813919 + 67813920.

It is an arithmetic number, because the mean of its divisors is an integer number (67813920).

Almost surely, 2^135627839 is an apocalyptic number.

135627839 is a deficient number, since it is larger than the sum of its proper divisors (1).

135627839 is an equidigital number, since it uses as much as digits as its factorization.

135627839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 135627839 is about 11645.9365874969. The cubic root of 135627839 is about 513.7868059107.

The spelling of 135627839 in words is "one hundred thirty-five million, six hundred twenty-seven thousand, eight hundred thirty-nine".