1614378979 has 2 divisors, whose sum is σ = 1614378980. Its totient is φ = 1614378978.

The previous prime is 1614378959. The next prime is 1614379073. The reversal of 1614378979 is 9798734161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1614378979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1614378959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807189489 + 807189490.

It is an arithmetic number, because the mean of its divisors is an integer number (807189490).

Almost surely, 2^1614378979 is an apocalyptic number.

1614378979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1614378979 is an equidigital number, since it uses as much as digits as its factorization.

1614378979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 55.

The square root of 1614378979 is about 40179.3352234703. The cubic root of 1614378979 is about 1173.1003507598.

The spelling of 1614378979 in words is "one billion, six hundred fourteen million, three hundred seventy-eight thousand, nine hundred seventy-nine".