1202816 has 16 divisors (see below), whose sum is σ = 2396490. Its totient is φ = 601344.

The previous prime is 1202813. The next prime is 1202819. The reversal of 1202816 is 6182021.

It is an interprime number because it is at equal distance from previous prime (1202813) and next prime (1202819).

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 1600 = 1096^2 + 40^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1202813) by changing a digit.

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, 4571 + ... + 4826.

2^1202816 is an apocalyptic number.

1202816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1202816 is a deficient number, since it is larger than the sum of its proper divisors (1193674).

1202816 is an frugal number, since it uses more digits than its factorization.

1202816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9411 (or 9399 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1202816 is about 1096.7296841063. The cubic root of 1202816 is about 106.3489154966.

Adding to 1202816 its reverse (6182021), we get a palindrome (7384837).

The spelling of 1202816 in words is "one million, two hundred two thousand, eight hundred sixteen".