1214879905 has 8 divisors (see below), whose sum is σ = 1458360000. Its totient is φ = 971567856.

The previous prime is 1214879873. The next prime is 1214879921. The reversal of 1214879905 is 5099784121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1214879905 - 2⁵ = 1214879873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25515 + ... + 55504.

It is an arithmetic number, because the mean of its divisors is an integer number (182295000).

Almost surely, 2^1214879905 is an apocalyptic number.

It is an amenable number.

1214879905 is a deficient number, since it is larger than the sum of its proper divisors (243480095).

1214879905 is an equidigital number, since it uses as much as digits as its factorization.

1214879905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84023.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 1214879905 is about 34855.1273846474. The cubic root of 1214879905 is about 1067.0328325671.

The spelling of 1214879905 in words is "one billion, two hundred fourteen million, eight hundred seventy-nine thousand, nine hundred five".