135622136431 has 4 divisors (see below), whose sum is σ = 135746219992. Its totient is φ = 135498052872.

The previous prime is 135622136407. The next prime is 135622136443. The reversal of 135622136431 is 134631226531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135622136431 - 2⁹ = 135622135919 is a prime.

It is a super-2 number, since 2×135622136431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135622130431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62040141 + ... + 62042326.

It is an arithmetic number, because the mean of its divisors is an integer number (33936554998).

Almost surely, 2^135622136431 is an apocalyptic number.

135622136431 is a deficient number, since it is larger than the sum of its proper divisors (124083561).

135622136431 is a wasteful number, since it uses less digits than its factorization.

135622136431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124083560.

The product of its digits is 77760, while the sum is 37.

The spelling of 135622136431 in words is "one hundred thirty-five billion, six hundred twenty-two million, one hundred thirty-six thousand, four hundred thirty-one".