106905239 has 4 divisors (see below), whose sum is σ = 122177424. Its totient is φ = 91633056.

The previous prime is 106905233. The next prime is 106905263. The reversal of 106905239 is 932509601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106905239 - 2⁸ = 106904983 is a prime.

It is a super-2 number, since 2×106905239² = 22857460251294242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106905199 and 106905208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106905233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7636082 + ... + 7636095.

It is an arithmetic number, because the mean of its divisors is an integer number (30544356).

Almost surely, 2^106905239 is an apocalyptic number.

106905239 is a deficient number, since it is larger than the sum of its proper divisors (15272185).

106905239 is an equidigital number, since it uses as much as digits as its factorization.

106905239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15272184.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 106905239 is about 10339.4989723874. The cubic root of 106905239 is about 474.6057507960.

The spelling of 106905239 in words is "one hundred six million, nine hundred five thousand, two hundred thirty-nine".