106208091 has 40 divisors (see below), whose sum is σ = 174240000. Its totient is φ = 63938160.

The previous prime is 106208071. The next prime is 106208101. The reversal of 106208091 is 190802601.

It is not a de Polignac number, because 106208091 - 2⁵ = 106208059 is a prime.

It is a super-2 number, since 2×106208091² = 22560317187728562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (106208021) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 177010 + ... + 177608.

It is an arithmetic number, because the mean of its divisors is an integer number (4356000).

Almost surely, 2^106208091 is an apocalyptic number.

106208091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

106208091 is a deficient number, since it is larger than the sum of its proper divisors (68031909).

106208091 is a wasteful number, since it uses less digits than its factorization.

106208091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 106208091 is about 10305.7309784411. The cubic root of 106208091 is about 473.5718373611.

The spelling of 106208091 in words is "one hundred six million, two hundred eight thousand, ninety-one".