135246022139 has 2 divisors, whose sum is σ = 135246022140. Its totient is φ = 135246022138.

The previous prime is 135246022127. The next prime is 135246022169. The reversal of 135246022139 is 931220642531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135246022139 is a prime.

It is not a weakly prime, because it can be changed into another prime (135246022169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67623011069 + 67623011070.

It is an arithmetic number, because the mean of its divisors is an integer number (67623011070).

Almost surely, 2^135246022139 is an apocalyptic number.

135246022139 is a deficient number, since it is larger than the sum of its proper divisors (1).

135246022139 is an equidigital number, since it uses as much as digits as its factorization.

135246022139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 135246022139 in words is "one hundred thirty-five billion, two hundred forty-six million, twenty-two thousand, one hundred thirty-nine".