90169102 has 16 divisors (see below), whose sum is σ = 138272400. Its totient is φ = 44087040.

The previous prime is 90169097. The next prime is 90169133. The reversal of 90169102 is 20196109.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19774 + ... + 23902.

It is an arithmetic number, because the mean of its divisors is an integer number (8642025).

Almost surely, 2^90169102 is an apocalyptic number.

90169102 is a deficient number, since it is larger than the sum of its proper divisors (48103298).

90169102 is a wasteful number, since it uses less digits than its factorization.

90169102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 90169102 is about 9495.7412559526. The cubic root of 90169102 is about 448.4209710921.

The spelling of 90169102 in words is "ninety million, one hundred sixty-nine thousand, one hundred two".