15020042 has 8 divisors (see below), whose sum is σ = 22838916. Its totient is φ = 7407072.

The previous prime is 15020023. The next prime is 15020053. The reversal of 15020042 is 24002051.

It can be written as a sum of positive squares in 2 ways, for example, as 14661241 + 358801 = 3829^2 + 599^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 15019999 and 15020026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51293 + ... + 51584.

Almost surely, 2^15020042 is an apocalyptic number.

15020042 is a deficient number, since it is larger than the sum of its proper divisors (7818874).

15020042 is a wasteful number, since it uses less digits than its factorization.

15020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102952.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 15020042 is about 3875.5698935769. The cubic root of 15020042 is about 246.7309981545.

Adding to 15020042 its reverse (24002051), we get a palindrome (39022093).

Subtracting 15020042 from its reverse (24002051), we obtain a square (8982009 = 2997²).

The spelling of 15020042 in words is "fifteen million, twenty thousand, forty-two".