1214779912 has 8 divisors (see below), whose sum is σ = 2277712350. Its totient is φ = 607389952.

The previous prime is 1214779901. The next prime is 1214779913. The reversal of 1214779912 is 2199774121.

It can be written as a sum of positive squares in only one way, i.e., 866360356 + 348419556 = 29434^2 + 18666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1214779913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75923737 + ... + 75923752.

Almost surely, 2^1214779912 is an apocalyptic number.

It is an amenable number.

1214779912 is a deficient number, since it is larger than the sum of its proper divisors (1062932438).

1214779912 is a wasteful number, since it uses less digits than its factorization.

1214779912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151847495 (or 151847491 counting only the distinct ones).

The product of its digits is 63504, while the sum is 43.

The square root of 1214779912 is about 34853.6929463723. The cubic root of 1214779912 is about 1067.0035570420.

The spelling of 1214779912 in words is "one billion, two hundred fourteen million, seven hundred seventy-nine thousand, nine hundred twelve".