15090242 has 8 divisors (see below), whose sum is σ = 23365632. Its totient is φ = 7301700.

The previous prime is 15090227. The next prime is 15090247. The reversal of 15090242 is 24209051.

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

It is not an unprimeable number, because it can be changed into a prime (15090247) 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, 121634 + ... + 121757.

It is an arithmetic number, because the mean of its divisors is an integer number (2920704).

Almost surely, 2^15090242 is an apocalyptic number.

15090242 is a deficient number, since it is larger than the sum of its proper divisors (8275390).

15090242 is a wasteful number, since it uses less digits than its factorization.

15090242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243424.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 15090242 is about 3884.6160685453. The cubic root of 15090242 is about 247.1147876265.

Adding to 15090242 its reverse (24209051), we get a palindrome (39299293).

The spelling of 15090242 in words is "fifteen million, ninety thousand, two hundred forty-two".