135623234240534 has 32 divisors (see below), whose sum is σ = 210695917602816. Its totient is φ = 65432050159840.

The previous prime is 135623234240503. The next prime is 135623234240537. The reversal of 135623234240534 is 435042432326531.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135623234240537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231675887 + ... + 232260549.

It is an arithmetic number, because the mean of its divisors is an integer number (6584247425088).

Almost surely, 2^{135623234240534} is an apocalyptic number.

135623234240534 is a deficient number, since it is larger than the sum of its proper divisors (75072683362282).

135623234240534 is a wasteful number, since it uses less digits than its factorization.

135623234240534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619540.

The product of its (nonzero) digits is 6220800, while the sum is 47.

The spelling of 135623234240534 in words is "one hundred thirty-five trillion, six hundred twenty-three billion, two hundred thirty-four million, two hundred forty thousand, five hundred thirty-four".