616141979 has 2 divisors, whose sum is σ = 616141980. Its totient is φ = 616141978.

The previous prime is 616141961. The next prime is 616142039. The reversal of 616141979 is 979141616.

It is a happy number.

616141979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616141979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (616141909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308070989 + 308070990.

It is an arithmetic number, because the mean of its divisors is an integer number (308070990).

Almost surely, 2^616141979 is an apocalyptic number.

616141979 is a deficient number, since it is larger than the sum of its proper divisors (1).

616141979 is an equidigital number, since it uses as much as digits as its factorization.

616141979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 616141979 is about 24822.2073756546. The cubic root of 616141979 is about 850.9295385881.

The spelling of 616141979 in words is "six hundred sixteen million, one hundred forty-one thousand, nine hundred seventy-nine".