616148249 has 2 divisors, whose sum is σ = 616148250. Its totient is φ = 616148248.

The previous prime is 616148243. The next prime is 616148261. The reversal of 616148249 is 942841616.

616148249 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 can be written as a sum of positive squares in only one way, i.e., 439657024 + 176491225 = 20968^2 + 13285^2 .

It is a cyclic number.

It is not a de Polignac number, because 616148249 - 2⁴ = 616148233 is a prime.

It is not a weakly prime, because it can be changed into another prime (616148243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308074124 + 308074125.

It is an arithmetic number, because the mean of its divisors is an integer number (308074125).

Almost surely, 2^616148249 is an apocalyptic number.

It is an amenable number.

616148249 is a deficient number, since it is larger than the sum of its proper divisors (1).

616148249 is an equidigital number, since it uses as much as digits as its factorization.

616148249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 616148249 is about 24822.3336735288. Note that the first 3 decimals coincide. The cubic root of 616148249 is about 850.9324249954.

The spelling of 616148249 in words is "six hundred sixteen million, one hundred forty-eight thousand, two hundred forty-nine".