106281239 has 2 divisors, whose sum is σ = 106281240. Its totient is φ = 106281238.

The previous prime is 106281233. The next prime is 106281247. The reversal of 106281239 is 932182601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106281239 is a prime.

It is a super-2 number, since 2×106281239² = 22591403526750242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106281233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53140619 + 53140620.

It is an arithmetic number, because the mean of its divisors is an integer number (53140620).

Almost surely, 2^106281239 is an apocalyptic number.

106281239 is a deficient number, since it is larger than the sum of its proper divisors (1).

106281239 is an equidigital number, since it uses as much as digits as its factorization.

106281239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 106281239 is about 10309.2792667577. The cubic root of 106281239 is about 473.6805324170.

The spelling of 106281239 in words is "one hundred six million, two hundred eighty-one thousand, two hundred thirty-nine".