155122340135423 has 4 divisors (see below), whose sum is σ = 155127472758048. Its totient is φ = 155117207512800.

The previous prime is 155122340135393. The next prime is 155122340135431. The reversal of 155122340135423 is 324531043221551.

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 155122340135423 - 2⁸ = 155122340135167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155122340135923) 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, 2566265978 + ... + 2566326423.

It is an arithmetic number, because the mean of its divisors is an integer number (38781868189512).

Almost surely, 2^{155122340135423} is an apocalyptic number.

155122340135423 is a deficient number, since it is larger than the sum of its proper divisors (5132622625).

155122340135423 is an equidigital number, since it uses as much as digits as its factorization.

155122340135423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132622624.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 155122340135423 its reverse (324531043221551), we get a palindrome (479653383356974).

The spelling of 155122340135423 in words is "one hundred fifty-five trillion, one hundred twenty-two billion, three hundred forty million, one hundred thirty-five thousand, four hundred twenty-three".