106205403 has 4 divisors (see below), whose sum is σ = 141607208. Its totient is φ = 70803600.

The previous prime is 106205387. The next prime is 106205413. The reversal of 106205403 is 304502601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 106205403 - 2⁴ = 106205387 is a prime.

It is a super-2 number, since 2×106205403² = 22559175252784818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106205403.

It is not an unprimeable number, because it can be changed into a prime (106205413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17700898 + ... + 17700903.

It is an arithmetic number, because the mean of its divisors is an integer number (35401802).

Almost surely, 2^106205403 is an apocalyptic number.

106205403 is a deficient number, since it is larger than the sum of its proper divisors (35401805).

106205403 is an equidigital number, since it uses as much as digits as its factorization.

106205403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35401804.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 106205403 is about 10305.6005647415. The cubic root of 106205403 is about 473.5678421481.

The spelling of 106205403 in words is "one hundred six million, two hundred five thousand, four hundred three".