15042243 has 8 divisors (see below), whose sum is σ = 21112000. Its totient is φ = 9500328.

The previous prime is 15042197. The next prime is 15042257. The reversal of 15042243 is 34224051.

15042243 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 15042243 - 2¹⁶ = 14976707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15042283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131893 + ... + 132006.

It is an arithmetic number, because the mean of its divisors is an integer number (2639000).

Almost surely, 2^15042243 is an apocalyptic number.

15042243 is a deficient number, since it is larger than the sum of its proper divisors (6069757).

15042243 is a wasteful number, since it uses less digits than its factorization.

15042243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263921.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 15042243 is about 3878.4330598838. The cubic root of 15042243 is about 246.8525019929.

Adding to 15042243 its reverse (34224051), we get a palindrome (49266294).

The spelling of 15042243 in words is "fifteen million, forty-two thousand, two hundred forty-three".