135639074629 has 2 divisors, whose sum is σ = 135639074630. Its totient is φ = 135639074628.

The previous prime is 135639074611. The next prime is 135639074639. The reversal of 135639074629 is 926470936531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116533476900 + 19105597729 = 341370^2 + 138223^2 .

It is a cyclic number.

It is not a de Polignac number, because 135639074629 - 2¹¹ = 135639072581 is a prime.

It is a super-2 number, since 2×135639074629² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135639074629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135639074639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67819537314 + 67819537315.

It is an arithmetic number, because the mean of its divisors is an integer number (67819537315).

Almost surely, 2^135639074629 is an apocalyptic number.

It is an amenable number.

135639074629 is a deficient number, since it is larger than the sum of its proper divisors (1).

135639074629 is an equidigital number, since it uses as much as digits as its factorization.

135639074629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 135639074629 in words is "one hundred thirty-five billion, six hundred thirty-nine million, seventy-four thousand, six hundred twenty-nine".