1212648 has 16 divisors (see below), whose sum is σ = 3031680. Its totient is φ = 404208.

The previous prime is 1212641. The next prime is 1212649. The reversal of 1212648 is 8462121.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50527 = 1212648 / (1 + 2 + 1 + 2 + 6 + 4 + 8).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1212641) 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 in 3 ways as a sum of consecutive naturals, for example, 25240 + ... + 25287.

It is an arithmetic number, because the mean of its divisors is an integer number (189480).

2^1212648 is an apocalyptic number.

It is an amenable number.

1212648 is an abundant number, since it is smaller than the sum of its proper divisors (1819032).

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

1212648 is a wasteful number, since it uses less digits than its factorization.

1212648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50536 (or 50532 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1212648 is about 1101.2029785648. The cubic root of 1212648 is about 106.6379002289.

Adding to 1212648 its reverse (8462121), we get a palindrome (9674769).

The spelling of 1212648 in words is "one million, two hundred twelve thousand, six hundred forty-eight".