135949723423504 has 15 divisors (see below), whose sum is σ = 263402679496117. Its totient is φ = 67974838392256.

The previous prime is 135949723423429. The next prime is 135949723423537. The reversal of 135949723423504 is 405324327949531.

The square root of 135949723423504 is 11659748.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 87635435504400 + 48314287919104 = 9361380^2 + 6950848^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 45181524 + ... + 48096460.

Almost surely, 2^{135949723423504} is an apocalyptic number.

135949723423504 is the 11659748-th square number.

It is an amenable number.

135949723423504 is a deficient number, since it is larger than the sum of its proper divisors (127452956072613).

135949723423504 is an frugal number, since it uses more digits than its factorization.

135949723423504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829882 (or 2914939 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 61.

The spelling of 135949723423504 in words is "one hundred thirty-five trillion, nine hundred forty-nine billion, seven hundred twenty-three million, four hundred twenty-three thousand, five hundred four".