15530142 has 8 divisors (see below), whose sum is σ = 31060296. Its totient is φ = 5176712.

The previous prime is 15530117. The next prime is 15530143. The reversal of 15530142 is 24103551.

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

15530142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15530143) 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, 1294173 + ... + 1294184.

It is an arithmetic number, because the mean of its divisors is an integer number (3882537).

Almost surely, 2^15530142 is an apocalyptic number.

15530142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15530142 is a wasteful number, since it uses less digits than its factorization.

15530142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588362.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 15530142 is about 3940.8301155975. The cubic root of 15530142 is about 249.4930634227.

Adding to 15530142 its reverse (24103551), we get a palindrome (39633693).

The spelling of 15530142 in words is "fifteen million, five hundred thirty thousand, one hundred forty-two".