106861099 has 4 divisors (see below), whose sum is σ = 113147064. Its totient is φ = 100575136.

The previous prime is 106861067. The next prime is 106861103. The reversal of 106861099 is 990168601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990168601 = 3019 ⋅327979.

It is a cyclic number.

It is not a de Polignac number, because 106861099 - 2⁵ = 106861067 is a prime.

It is a super-2 number, since 2×106861099² = 22838588958975602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106861199) 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, 3142957 + ... + 3142990.

It is an arithmetic number, because the mean of its divisors is an integer number (28286766).

Almost surely, 2^106861099 is an apocalyptic number.

106861099 is a deficient number, since it is larger than the sum of its proper divisors (6285965).

106861099 is an equidigital number, since it uses as much as digits as its factorization.

106861099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285964.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 106861099 is about 10337.3642191808. The cubic root of 106861099 is about 474.5404219686.

The spelling of 106861099 in words is "one hundred six million, eight hundred sixty-one thousand, ninety-nine".