106690291 has 4 divisors (see below), whose sum is σ = 106829800. Its totient is φ = 106550784.

The previous prime is 106690289. The next prime is 106690321. The reversal of 106690291 is 192096601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192096601 = 839 ⋅228959.

It is a cyclic number.

It is not a de Polignac number, because 106690291 - 2¹ = 106690289 is a prime.

It is a super-2 number, since 2×106690291² = 22765636387329362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106690271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68601 + ... + 70138.

It is an arithmetic number, because the mean of its divisors is an integer number (26707450).

Almost surely, 2^106690291 is an apocalyptic number.

106690291 is a deficient number, since it is larger than the sum of its proper divisors (139509).

106690291 is an equidigital number, since it uses as much as digits as its factorization.

106690291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139508.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 106690291 is about 10329.0992346864. The cubic root of 106690291 is about 474.2874501946.

The spelling of 106690291 in words is "one hundred six million, six hundred ninety thousand, two hundred ninety-one".