135923591459 has 4 divisors (see below), whose sum is σ = 135948216360. Its totient is φ = 135898966560.

The previous prime is 135923591437. The next prime is 135923591501. The reversal of 135923591459 is 954195329531.

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 135923591459 - 2²⁴ = 135906814243 is a prime.

It is a super-2 number, since 2×135923591459² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135923591059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12304169 + ... + 12315210.

It is an arithmetic number, because the mean of its divisors is an integer number (33987054090).

Almost surely, 2^135923591459 is an apocalyptic number.

135923591459 is a deficient number, since it is larger than the sum of its proper divisors (24624901).

135923591459 is an equidigital number, since it uses as much as digits as its factorization.

135923591459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24624900.

The product of its digits is 6561000, while the sum is 56.

The spelling of 135923591459 in words is "one hundred thirty-five billion, nine hundred twenty-three million, five hundred ninety-one thousand, four hundred fifty-nine".