90169106 has 8 divisors (see below), whose sum is σ = 135560304. Its totient is φ = 44982340.

The previous prime is 90169097. The next prime is 90169133. The reversal of 90169106 is 60196109.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

90169106 is a strobogrammatic number because it is the same when read upside-down.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50000 + ... + 51771.

It is an arithmetic number, because the mean of its divisors is an integer number (16945038).

Almost surely, 2^90169106 is an apocalyptic number.

90169106 is a deficient number, since it is larger than the sum of its proper divisors (45391198).

90169106 is a wasteful number, since it uses less digits than its factorization.

90169106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102216.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 90169106 is about 9495.7414665733. The cubic root of 90169106 is about 448.4209777229.

It can be divided in two parts, 901 and 69106, that added together give a palindrome (70007).

The spelling of 90169106 in words is "ninety million, one hundred sixty-nine thousand, one hundred six".