100000039 has 2 divisors, whose sum is σ = 100000040. Its totient is φ = 100000038.

The previous prime is 100000037. The next prime is 100000049. The reversal of 100000039 is 930000001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100000039 - 2¹ = 100000037 is a prime.

Together with 100000037, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99999974 and 100000028.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100000037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000019 + 50000020.

It is an arithmetic number, because the mean of its divisors is an integer number (50000020).

Almost surely, 2^100000039 is an apocalyptic number.

100000039 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000039 is an equidigital number, since it uses as much as digits as its factorization.

100000039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 100000039 is about 10000.0019499998. The cubic root of 100000039 is about 464.1589437019.

The spelling of 100000039 in words is "one hundred million, thirty-nine", and thus it is an aban number.