106542239 has 2 divisors, whose sum is σ = 106542240. Its totient is φ = 106542238.

The previous prime is 106542229. The next prime is 106542269. The reversal of 106542239 is 932245601.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106542239 is a prime.

It is a super-2 number, since 2×106542239² = 22702497382266242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106542209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53271119 + 53271120.

It is an arithmetic number, because the mean of its divisors is an integer number (53271120).

Almost surely, 2^106542239 is an apocalyptic number.

106542239 is a deficient number, since it is larger than the sum of its proper divisors (1).

106542239 is an equidigital number, since it uses as much as digits as its factorization.

106542239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 106542239 is about 10321.9300036379. The cubic root of 106542239 is about 474.0679622088.

The spelling of 106542239 in words is "one hundred six million, five hundred forty-two thousand, two hundred thirty-nine".