1212344859 has 24 divisors (see below), whose sum is σ = 1781214736. Its totient is φ = 732916800.

The previous prime is 1212344839. The next prime is 1212344891. The reversal of 1212344859 is 9584432121.

It is not a de Polignac number, because 1212344859 - 2⁸ = 1212344603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212344839) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 148857 + ... + 156789.

Almost surely, 2^1212344859 is an apocalyptic number.

1212344859 is a deficient number, since it is larger than the sum of its proper divisors (568869877).

1212344859 is a wasteful number, since it uses less digits than its factorization.

1212344859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8379 (or 8368 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 1212344859 is about 34818.7429267629. The cubic root of 1212344859 is about 1066.2901361226.

The spelling of 1212344859 in words is "one billion, two hundred twelve million, three hundred forty-four thousand, eight hundred fifty-nine".