523122463145 has 4 divisors (see below), whose sum is σ = 627746955780. Its totient is φ = 418497970512.

The previous prime is 523122463141. The next prime is 523122463153. The reversal of 523122463145 is 541364221325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106205595664 + 416916867481 = 325892^2 + 645691^2 .

It is a cyclic number.

It is not a de Polignac number, because 523122463145 - 2² = 523122463141 is a prime.

It is a super-2 number, since 2×523122463145² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523122463099 and 523122463108.

It is not an unprimeable number, because it can be changed into a prime (523122463141) 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, 52312246310 + ... + 52312246319.

It is an arithmetic number, because the mean of its divisors is an integer number (156936738945).

Almost surely, 2^523122463145 is an apocalyptic number.

It is an amenable number.

523122463145 is a deficient number, since it is larger than the sum of its proper divisors (104624492635).

523122463145 is a wasteful number, since it uses less digits than its factorization.

523122463145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104624492634.

The product of its digits is 172800, while the sum is 38.

The spelling of 523122463145 in words is "five hundred twenty-three billion, one hundred twenty-two million, four hundred sixty-three thousand, one hundred forty-five".