1618313029 has 2 divisors, whose sum is σ = 1618313030. Its totient is φ = 1618313028.

The previous prime is 1618313027. The next prime is 1618313101. The reversal of 1618313029 is 9203138161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190940100 + 427372929 = 34510^2 + 20673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1618313029 - 2¹ = 1618313027 is a prime.

Together with 1618313027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1618312985 and 1618313003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1618313027) 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, 809156514 + 809156515.

It is an arithmetic number, because the mean of its divisors is an integer number (809156515).

Almost surely, 2^1618313029 is an apocalyptic number.

It is an amenable number.

1618313029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1618313029 is an equidigital number, since it uses as much as digits as its factorization.

1618313029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1618313029 is about 40228.2615706918. The cubic root of 1618313029 is about 1174.0524798854.

The spelling of 1618313029 in words is "one billion, six hundred eighteen million, three hundred thirteen thousand, twenty-nine".