135458639 has 2 divisors, whose sum is σ = 135458640. Its totient is φ = 135458638.

The previous prime is 135458611. The next prime is 135458647. The reversal of 135458639 is 936854531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135458639 - 2¹⁶ = 135393103 is a prime.

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 135458639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135458539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67729319 + 67729320.

It is an arithmetic number, because the mean of its divisors is an integer number (67729320).

Almost surely, 2^135458639 is an apocalyptic number.

135458639 is a deficient number, since it is larger than the sum of its proper divisors (1).

135458639 is an equidigital number, since it uses as much as digits as its factorization.

135458639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The square root of 135458639 is about 11638.6699841520. The cubic root of 135458639 is about 513.5730619288.

The spelling of 135458639 in words is "one hundred thirty-five million, four hundred fifty-eight thousand, six hundred thirty-nine".