1212949283 has 24 divisors (see below), whose sum is σ = 1522507392. Its totient is φ = 957809664.

The previous prime is 1212949277. The next prime is 1212949333. The reversal of 1212949283 is 3829492121.

It is not a de Polignac number, because 1212949283 - 2⁶ = 1212949219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212949283.

It is not an unprimeable number, because it can be changed into a prime (1212943283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385091 + ... + 388227.

It is an arithmetic number, because the mean of its divisors is an integer number (63437808).

Almost surely, 2^1212949283 is an apocalyptic number.

1212949283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212949283 is a deficient number, since it is larger than the sum of its proper divisors (309558109).

1212949283 is a wasteful number, since it uses less digits than its factorization.

1212949283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771 (or 3764 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 1212949283 is about 34827.4214233555. The cubic root of 1212949283 is about 1066.4673091079.

The spelling of 1212949283 in words is "one billion, two hundred twelve million, nine hundred forty-nine thousand, two hundred eighty-three".