15142844 has 12 divisors (see below), whose sum is σ = 26527704. Its totient is φ = 7563504.

The previous prime is 15142819. The next prime is 15142847. The reversal of 15142844 is 44824151.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142847) 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, 5279 + ... + 7625.

It is an arithmetic number, because the mean of its divisors is an integer number (2210642).

Almost surely, 2^15142844 is an apocalyptic number.

It is an amenable number.

15142844 is a deficient number, since it is larger than the sum of its proper divisors (11384860).

15142844 is a wasteful number, since it uses less digits than its factorization.

15142844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964 (or 3962 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 15142844 is about 3891.3807318226. The cubic root of 15142844 is about 247.4015879190.

Adding to 15142844 its reverse (44824151), we get a palindrome (59966995).

The spelling of 15142844 in words is "fifteen million, one hundred forty-two thousand, eight hundred forty-four".