1214819979 has 8 divisors (see below), whose sum is σ = 1620036240. Its totient is φ = 809741856.

The previous prime is 1214819953. The next prime is 1214819993. The reversal of 1214819979 is 9799184121.

It is a happy number.

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

It is not a de Polignac number, because 1214819979 - 2⁹ = 1214819467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214819939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11892 + ... + 50705.

It is an arithmetic number, because the mean of its divisors is an integer number (202504530).

Almost surely, 2^1214819979 is an apocalyptic number.

1214819979 is a deficient number, since it is larger than the sum of its proper divisors (405216261).

1214819979 is an equidigital number, since it uses as much as digits as its factorization.

1214819979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69069.

The product of its digits is 326592, while the sum is 51.

The square root of 1214819979 is about 34854.2677300786. The cubic root of 1214819979 is about 1067.0152878807.

The spelling of 1214819979 in words is "one billion, two hundred fourteen million, eight hundred nineteen thousand, nine hundred seventy-nine".