106199939 has 2 divisors, whose sum is σ = 106199940. Its totient is φ = 106199938.

The previous prime is 106199927. The next prime is 106199971. The reversal of 106199939 is 939991601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106199939 is a prime.

It is a super-2 number, since 2×106199939² = 22556854087207442, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 106199893 and 106199902.

It is not a weakly prime, because it can be changed into another prime (106199909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53099969 + 53099970.

It is an arithmetic number, because the mean of its divisors is an integer number (53099970).

Almost surely, 2^106199939 is an apocalyptic number.

106199939 is a deficient number, since it is larger than the sum of its proper divisors (1).

106199939 is an equidigital number, since it uses as much as digits as its factorization.

106199939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 106199939 is about 10305.3354627591. The cubic root of 106199939 is about 473.5597207187.

The spelling of 106199939 in words is "one hundred six million, one hundred ninety-nine thousand, nine hundred thirty-nine".