1293218612 has 12 divisors (see below), whose sum is σ = 2586437280. Its totient is φ = 554236536.

The previous prime is 1293218587. The next prime is 1293218639. The reversal of 1293218612 is 2168123921.

1293218612 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23093162 + ... + 23093217.

It is an arithmetic number, because the mean of its divisors is an integer number (215536440).

Almost surely, 2^1293218612 is an apocalyptic number.

It is an amenable number.

1293218612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1293218612 is a wasteful number, since it uses less digits than its factorization.

1293218612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46186390 (or 46186388 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1293218612 is about 35961.3488623550. The cubic root of 1293218612 is about 1089.4918406791.

The spelling of 1293218612 in words is "one billion, two hundred ninety-three million, two hundred eighteen thousand, six hundred twelve".