612163249 has 2 divisors, whose sum is σ = 612163250. Its totient is φ = 612163248.

The previous prime is 612163247. The next prime is 612163259. The reversal of 612163249 is 942361216.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341067024 + 271096225 = 18468^2 + 16465^2 .

It is a cyclic number.

It is not a de Polignac number, because 612163249 - 2¹ = 612163247 is a prime.

Together with 612163247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (612163247) 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, 306081624 + 306081625.

It is an arithmetic number, because the mean of its divisors is an integer number (306081625).

Almost surely, 2^612163249 is an apocalyptic number.

It is an amenable number.

612163249 is a deficient number, since it is larger than the sum of its proper divisors (1).

612163249 is an equidigital number, since it uses as much as digits as its factorization.

612163249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 612163249 is about 24741.9330085586. The cubic root of 612163249 is about 849.0939591341.

The spelling of 612163249 in words is "six hundred twelve million, one hundred sixty-three thousand, two hundred forty-nine".