13124742 has 8 divisors (see below), whose sum is σ = 26249496. Its totient is φ = 4374912.

The previous prime is 13124723. The next prime is 13124747. The reversal of 13124742 is 24742131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

13124742 is an admirable number.

It is a super-5 number, since 5×13124742⁵ (a number of 37 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124747) 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, 1093723 + ... + 1093734.

It is an arithmetic number, because the mean of its divisors is an integer number (3281187).

Almost surely, 2^13124742 is an apocalyptic number.

13124742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13124742 is a wasteful number, since it uses less digits than its factorization.

13124742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187462.

The product of its digits is 1344, while the sum is 24.

The square root of 13124742 is about 3622.8085789895. The cubic root of 13124742 is about 235.8831533993.

Adding to 13124742 its reverse (24742131), we get a palindrome (37866873).

The spelling of 13124742 in words is "thirteen million, one hundred twenty-four thousand, seven hundred forty-two".