101818039 has 2 divisors, whose sum is σ = 101818040. Its totient is φ = 101818038.

The previous prime is 101818037. The next prime is 101818103. The reversal of 101818039 is 930818101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101818039 - 2¹ = 101818037 is a prime.

Together with 101818037, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 101818039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101818037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50909019 + 50909020.

It is an arithmetic number, because the mean of its divisors is an integer number (50909020).

Almost surely, 2^101818039 is an apocalyptic number.

101818039 is a deficient number, since it is larger than the sum of its proper divisors (1).

101818039 is an equidigital number, since it uses as much as digits as its factorization.

101818039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 101818039 is about 10090.4925053240. The cubic root of 101818039 is about 466.9548703308.

The spelling of 101818039 in words is "one hundred one million, eight hundred eighteen thousand, thirty-nine".