135822139 has 2 divisors, whose sum is σ = 135822140. Its totient is φ = 135822138.

The previous prime is 135822101. The next prime is 135822149. The reversal of 135822139 is 931228531.

135822139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135822139 is a prime.

It is not a weakly prime, because it can be changed into another prime (135822149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67911069 + 67911070.

It is an arithmetic number, because the mean of its divisors is an integer number (67911070).

Almost surely, 2^135822139 is an apocalyptic number.

135822139 is a deficient number, since it is larger than the sum of its proper divisors (1).

135822139 is an equidigital number, since it uses as much as digits as its factorization.

135822139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 135822139 is about 11654.2755673615. The cubic root of 135822139 is about 514.0320386091.

The spelling of 135822139 in words is "one hundred thirty-five million, eight hundred twenty-two thousand, one hundred thirty-nine".