1213085708 has 12 divisors (see below), whose sum is σ = 2126116272. Its totient is φ = 605623920.

The previous prime is 1213085683. The next prime is 1213085717. The reversal of 1213085708 is 8075803121.

It is a super-2 number, since 2×1213085708² = 2943153869907722528, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 226760 + ... + 232047.

It is an arithmetic number, because the mean of its divisors is an integer number (177176356).

Almost surely, 2^1213085708 is an apocalyptic number.

It is an amenable number.

1213085708 is a deficient number, since it is larger than the sum of its proper divisors (913030564).

1213085708 is a wasteful number, since it uses less digits than its factorization.

1213085708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459472 (or 459470 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1213085708 is about 34829.3799542857. The cubic root of 1213085708 is about 1066.5072908148.

Adding to 1213085708 its reverse (8075803121), we get a palindrome (9288888829).

The spelling of 1213085708 in words is "one billion, two hundred thirteen million, eighty-five thousand, seven hundred eight".