5123530142 has 12 divisors (see below), whose sum is σ = 8163965040. Its totient is φ = 2411072736.

The previous prime is 5123530123. The next prime is 5123530147. The reversal of 5123530142 is 2410353215.

It is a happy number.

It is a super-2 number, since 2×5123530142² = 52501122231965080328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123530147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4431542 + ... + 4432697.

It is an arithmetic number, because the mean of its divisors is an integer number (680330420).

Almost surely, 2^5123530142 is an apocalyptic number.

5123530142 is a deficient number, since it is larger than the sum of its proper divisors (3040434898).

5123530142 is a wasteful number, since it uses less digits than its factorization.

5123530142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864275 (or 8864258 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 5123530142 is about 71578.8386466280. The cubic root of 5123530142 is about 1723.9437787502.

Adding to 5123530142 its reverse (2410353215), we get a palindrome (7533883357).

The spelling of 5123530142 in words is "five billion, one hundred twenty-three million, five hundred thirty thousand, one hundred forty-two".