1212526916 has 12 divisors (see below), whose sum is σ = 2123423232. Its totient is φ = 605834568.

The previous prime is 1212526897. The next prime is 1212526919. The reversal of 1212526916 is 6196252121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212526919) 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 3 ways as a sum of consecutive naturals, for example, 100820 + ... + 112203.

It is an arithmetic number, because the mean of its divisors is an integer number (176951936).

Almost surely, 2^1212526916 is an apocalyptic number.

It is an amenable number.

1212526916 is a deficient number, since it is larger than the sum of its proper divisors (910896316).

1212526916 is a wasteful number, since it uses less digits than its factorization.

1212526916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214450 (or 214448 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 1212526916 is about 34821.3571820514. The cubic root of 1212526916 is about 1066.3435081384.

The spelling of 1212526916 in words is "one billion, two hundred twelve million, five hundred twenty-six thousand, nine hundred sixteen".