90190110 has 32 divisors (see below), whose sum is σ = 216895392. Its totient is φ = 24001920.

The previous prime is 90190109. The next prime is 90190171. The reversal of 90190110 is 1109109.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13452 + ... + 19008.

It is an arithmetic number, because the mean of its divisors is an integer number (6777981).

Almost surely, 2^90190110 is an apocalyptic number.

90190110 is an abundant number, since it is smaller than the sum of its proper divisors (126705282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90190110 is a wasteful number, since it uses less digits than its factorization.

90190110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 90190110 is about 9496.8473716281. The cubic root of 90190110 is about 448.4557934279.

Adding to 90190110 its reverse (1109109), we get a palindrome (91299219).

The spelling of 90190110 in words is "ninety million, one hundred ninety thousand, one hundred ten".