106109961 has 4 divisors (see below), whose sum is σ = 141479952. Its totient is φ = 70739972.

The previous prime is 106109951. The next prime is 106109987. The reversal of 106109961 is 169901601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169901601 = 3 ⋅56633867.

It is a cyclic number.

It is not a de Polignac number, because 106109961 - 2⁵ = 106109929 is a prime.

It is a super-2 number, since 2×106109961² = 22518647646843042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106109911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17684991 + ... + 17684996.

It is an arithmetic number, because the mean of its divisors is an integer number (35369988).

Almost surely, 2^106109961 is an apocalyptic number.

It is an amenable number.

106109961 is a deficient number, since it is larger than the sum of its proper divisors (35369991).

106109961 is an equidigital number, since it uses as much as digits as its factorization.

106109961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35369990.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 106109961 is about 10300.9689350080. The cubic root of 106109961 is about 473.4259416211.

The spelling of 106109961 in words is "one hundred six million, one hundred nine thousand, nine hundred sixty-one".