106605143 has 4 divisors (see below), whose sum is σ = 112215960. Its totient is φ = 100994328.

The previous prime is 106605137. The next prime is 106605173. The reversal of 106605143 is 341506601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341506601 = 389 ⋅877909.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106605143 is a prime.

It is a super-2 number, since 2×106605143² = 22729313028100898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106605133) 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, 2805380 + ... + 2805417.

It is an arithmetic number, because the mean of its divisors is an integer number (28053990).

Almost surely, 2^106605143 is an apocalyptic number.

106605143 is a deficient number, since it is larger than the sum of its proper divisors (5610817).

106605143 is an equidigital number, since it uses as much as digits as its factorization.

106605143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610816.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 106605143 is about 10324.9766585693. The cubic root of 106605143 is about 474.1612425967.

The spelling of 106605143 in words is "one hundred six million, six hundred five thousand, one hundred forty-three".