1241216 has 16 divisors (see below), whose sum is σ = 2472990. Its totient is φ = 620544.

The previous prime is 1241203. The next prime is 1241243. The reversal of 1241216 is 6121421.

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 40000 = 1096^2 + 200^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1241194 and 1241203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4721 + ... + 4976.

2^1241216 is an apocalyptic number.

1241216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1241216 is a deficient number, since it is larger than the sum of its proper divisors (1231774).

1241216 is an frugal number, since it uses more digits than its factorization.

1241216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9711 (or 9699 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 1241216 is about 1114.0987388917. The cubic root of 1241216 is about 107.4688137407.

Adding to 1241216 its reverse (6121421), we get a palindrome (7362637).

The spelling of 1241216 in words is "one million, two hundred forty-one thousand, two hundred sixteen".