5123742 has 48 divisors (see below), whose sum is σ = 11524608. Its totient is φ = 1516320.

The previous prime is 5123719. The next prime is 5123743. The reversal of 5123742 is 2473215.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5⁷ + 1 + 2⁵ + 3¹⁴ + 7³ + 4⁹ + 2⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31353 + ... + 31515.

It is an arithmetic number, because the mean of its divisors is an integer number (240096).

Almost surely, 2^5123742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5123742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5762304).

5123742 is an abundant number, since it is smaller than the sum of its proper divisors (6400866).

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

5123742 is a wasteful number, since it uses less digits than its factorization.

5123742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 212 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 5123742 is about 2263.5684217624. The cubic root of 5123742 is about 172.3967540118.

Adding to 5123742 its reverse (2473215), we get a palindrome (7596957).

The spelling of 5123742 in words is "five million, one hundred twenty-three thousand, seven hundred forty-two".