1930818107 has 2 divisors, whose sum is σ = 1930818108. Its totient is φ = 1930818106.

The previous prime is 1930818089. The next prime is 1930818137. The reversal of 1930818107 is 7018180391.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1930818107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1930818137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965409053 + 965409054.

It is an arithmetic number, because the mean of its divisors is an integer number (965409054).

Almost surely, 2^1930818107 is an apocalyptic number.

1930818107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930818107 is an equidigital number, since it uses as much as digits as its factorization.

1930818107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 1930818107 is about 43941.0753964898. The cubic root of 1930818107 is about 1245.2229633527. Note that the first 3 decimals are identical.

Adding to 1930818107 its reverse (7018180391), we get a palindrome (8948998498).

The spelling of 1930818107 in words is "one billion, nine hundred thirty million, eight hundred eighteen thousand, one hundred seven".