15216116 has 6 divisors (see below), whose sum is σ = 26628210. Its totient is φ = 7608056.

The previous prime is 15216079. The next prime is 15216143. The reversal of 15216116 is 61161251.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 1123600 = 3754^2 + 1060^2 .

It is a super-2 number, since 2×15216116² = 463060372250912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15216091 and 15216100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902011 + ... + 1902018.

It is an arithmetic number, because the mean of its divisors is an integer number (4438035).

Almost surely, 2^15216116 is an apocalyptic number.

It is an amenable number.

15216116 is a deficient number, since it is larger than the sum of its proper divisors (11412094).

15216116 is a wasteful number, since it uses less digits than its factorization.

15216116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804033 (or 3804031 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 15216116 is about 3900.7840237573. The cubic root of 15216116 is about 247.7999818038.

Adding to 15216116 its reverse (61161251), we get a palindrome (76377367).

The spelling of 15216116 in words is "fifteen million, two hundred sixteen thousand, one hundred sixteen".