135920140767 has 6 divisors (see below), whose sum is σ = 196329092232. Its totient is φ = 90613427172.

The previous prime is 135920140753. The next prime is 135920140771. The reversal of 135920140767 is 767041029531.

135920140767 is a `hidden beast` number, since 1 + 35 + 9 + 201 + 407 + 6 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-135920140767 is a prime.

It is a super-2 number, since 2×135920140767² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135920140717) 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 5 ways as a sum of consecutive naturals, for example, 7551118923 + ... + 7551118940.

It is an arithmetic number, because the mean of its divisors is an integer number (32721515372).

Almost surely, 2^135920140767 is an apocalyptic number.

135920140767 is a deficient number, since it is larger than the sum of its proper divisors (60408951465).

135920140767 is a wasteful number, since it uses less digits than its factorization.

135920140767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15102237869 (or 15102237866 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 135920140767 in words is "one hundred thirty-five billion, nine hundred twenty million, one hundred forty thousand, seven hundred sixty-seven".