15242130 has 48 divisors (see below), whose sum is σ = 39911040. Its totient is φ = 4035744.

The previous prime is 15242093. The next prime is 15242137. The reversal of 15242130 is 3124251.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15242137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14151 + ... + 15189.

It is an arithmetic number, because the mean of its divisors is an integer number (831480).

Almost surely, 2^15242130 is an apocalyptic number.

15242130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15242130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19955520).

15242130 is an abundant number, since it is smaller than the sum of its proper divisors (24668910).

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

15242130 is a wasteful number, since it uses less digits than its factorization.

15242130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 15242130 is about 3904.1170576713. The cubic root of 15242130 is about 247.9411172207.

Adding to 15242130 its reverse (3124251), we get a palindrome (18366381).

The spelling of 15242130 in words is "fifteen million, two hundred forty-two thousand, one hundred thirty".