106235986 has 4 divisors (see below), whose sum is σ = 159353982. Its totient is φ = 53117992.

The previous prime is 106235981. The next prime is 106235999. The reversal of 106235986 is 689532601.

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

It can be written as a sum of positive squares in only one way, i.e., 102111025 + 4124961 = 10105^2 + 2031^2 .

It is a super-2 number, since 2×106235986² = 22572169442784392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (106235981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26558995 + ... + 26558998.

Almost surely, 2^106235986 is an apocalyptic number.

106235986 is a deficient number, since it is larger than the sum of its proper divisors (53117996).

106235986 is an equidigital number, since it uses as much as digits as its factorization.

106235986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53117995.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 106235986 is about 10307.0842627777. The cubic root of 106235986 is about 473.6132941212.

The spelling of 106235986 in words is "one hundred six million, two hundred thirty-five thousand, nine hundred eighty-six".