618267061 has 2 divisors, whose sum is σ = 618267062. Its totient is φ = 618267060.

The previous prime is 618267059. The next prime is 618267107. The reversal of 618267061 is 160762816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561927025 + 56340036 = 23705^2 + 7506^2 .

It is a cyclic number.

It is not a de Polignac number, because 618267061 - 2¹ = 618267059 is a prime.

Together with 618267059, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 618267061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618267031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309133530 + 309133531.

It is an arithmetic number, because the mean of its divisors is an integer number (309133531).

Almost surely, 2^618267061 is an apocalyptic number.

It is an amenable number.

618267061 is a deficient number, since it is larger than the sum of its proper divisors (1).

618267061 is an equidigital number, since it uses as much as digits as its factorization.

618267061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 618267061 is about 24864.9765935945. The cubic root of 618267061 is about 851.9067051812.

The spelling of 618267061 in words is "six hundred eighteen million, two hundred sixty-seven thousand, sixty-one".