15104242 has 4 divisors (see below), whose sum is σ = 22656366. Its totient is φ = 7552120.

The previous prime is 15104233. The next prime is 15104263. The reversal of 15104242 is 24240151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 6395841 = 2951^2 + 2529^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776059 + ... + 3776062.

Almost surely, 2^15104242 is an apocalyptic number.

15104242 is a deficient number, since it is larger than the sum of its proper divisors (7552124).

15104242 is an equidigital number, since it uses as much as digits as its factorization.

15104242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7552123.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 15104242 is about 3886.4176306722. The cubic root of 15104242 is about 247.1911844065.

Adding to 15104242 its reverse (24240151), we get a palindrome (39344393).

The spelling of 15104242 in words is "fifteen million, one hundred four thousand, two hundred forty-two".