15241216 has 39 divisors (see below), whose sum is σ = 30986553. Its totient is φ = 7495680.

The previous prime is 15241201. The next prime is 15241223. The reversal of 15241216 is 61214251.

The square root of 15241216 is 3904.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 14745600 = 704^2 + 3840^2 .

It is a Duffinian number.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 249826 + ... + 249886.

It is an arithmetic number, because the mean of its divisors is an integer number (794527).

Almost surely, 2^15241216 is an apocalyptic number.

15241216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15241216 is the 3904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15241216

15241216 is an abundant number, since it is smaller than the sum of its proper divisors (15745337).

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

15241216 is an frugal number, since it uses more digits than its factorization.

15241216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 63 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The cubic root of 15241216 is about 247.9361611611.

Adding to 15241216 its reverse (61214251), we get a palindrome (76455467).

The spelling of 15241216 in words is "fifteen million, two hundred forty-one thousand, two hundred sixteen".