13124642 has 8 divisors (see below), whose sum is σ = 19755036. Its totient is φ = 6539632.

The previous prime is 13124641. The next prime is 13124669. The reversal of 13124642 is 24642131.

It can be written as a sum of positive squares in 2 ways, for example, as 9247681 + 3876961 = 3041^2 + 1969^2 .

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13124641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10613 + ... + 11784.

Almost surely, 2^13124642 is an apocalyptic number.

13124642 is a deficient number, since it is larger than the sum of its proper divisors (6630394).

13124642 is a wasteful number, since it uses less digits than its factorization.

13124642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22692.

The product of its digits is 1152, while the sum is 23.

The square root of 13124642 is about 3622.7947775164. The cubic root of 13124642 is about 235.8825543177.

Adding to 13124642 its reverse (24642131), we get a palindrome (37766773).

The spelling of 13124642 in words is "thirteen million, one hundred twenty-four thousand, six hundred forty-two".