522140154223 has 4 divisors (see below), whose sum is σ = 552854280960. Its totient is φ = 491426027488.

The previous prime is 522140154191. The next prime is 522140154227. The reversal of 522140154223 is 322451041225.

It is a happy number.

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 522140154223 - 2⁵ = 522140154191 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 (522140154227) 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, 15357063343 + ... + 15357063376.

It is an arithmetic number, because the mean of its divisors is an integer number (138213570240).

Almost surely, 2^522140154223 is an apocalyptic number.

522140154223 is a deficient number, since it is larger than the sum of its proper divisors (30714126737).

522140154223 is a wasteful number, since it uses less digits than its factorization.

522140154223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30714126736.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 522140154223 its reverse (322451041225), we get a palindrome (844591195448).

The spelling of 522140154223 in words is "five hundred twenty-two billion, one hundred forty million, one hundred fifty-four thousand, two hundred twenty-three".