90111106 has 8 divisors (see below), whose sum is σ = 135922320. Its totient is φ = 44803668.

The previous prime is 90111103. The next prime is 90111107. The reversal of 90111106 is 60111109.

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

It is a super-2 number, since 2×90111106² = 16240022849086472, which contains 22 as substring.

90111106 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (90111103) 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, 125496 + ... + 126211.

It is an arithmetic number, because the mean of its divisors is an integer number (16990290).

Almost surely, 2^90111106 is an apocalyptic number.

90111106 is a deficient number, since it is larger than the sum of its proper divisors (45811214).

90111106 is a wasteful number, since it uses less digits than its factorization.

90111106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251888.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 90111106 is about 9492.6869747190. The cubic root of 90111106 is about 448.3248102868.

The spelling of 90111106 in words is "ninety million, one hundred eleven thousand, one hundred six".