5123140 has 72 divisors (see below), whose sum is σ = 12400920. Its totient is φ = 1774080.

The previous prime is 5123119. The next prime is 5123143. The reversal of 5123140 is 413215.

It can be written as a sum of positive squares in 4 ways, for example, as 662596 + 4460544 = 814^2 + 2112^2 .

It is not an unprimeable number, because it can be changed into a prime (5123143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70144 + ... + 70216.

It is an arithmetic number, because the mean of its divisors is an integer number (172235).

Almost surely, 2^5123140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5123140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6200460).

5123140 is an abundant number, since it is smaller than the sum of its proper divisors (7277780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5123140 is a wasteful number, since it uses less digits than its factorization.

5123140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 5123140 is about 2263.4354419775. The cubic root of 5123140 is about 172.3900019862.

Adding to 5123140 its reverse (413215), we get a palindrome (5536355).

The spelling of 5123140 in words is "five million, one hundred twenty-three thousand, one hundred forty".