106508091 has 24 divisors (see below), whose sum is σ = 152630080. Its totient is φ = 65867472.

The previous prime is 106508081. The next prime is 106508093. The reversal of 106508091 is 190805601.

It is a happy number.

It is not a de Polignac number, because 106508091 - 2⁹ = 106507579 is a prime.

It is a super-2 number, since 2×106508091² = 22687946896928562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106508093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637690 + ... + 637856.

Almost surely, 2^106508091 is an apocalyptic number.

106508091 is a deficient number, since it is larger than the sum of its proper divisors (46121989).

106508091 is an equidigital number, since it uses as much as digits as its factorization.

106508091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 106508091 is about 10320.2757230609. The cubic root of 106508091 is about 474.0173087379.

The spelling of 106508091 in words is "one hundred six million, five hundred eight thousand, ninety-one".