90100211 has 8 divisors (see below), whose sum is σ = 92057280. Its totient is φ = 88163712.

The previous prime is 90100201. The next prime is 90100237. The reversal of 90100211 is 11200109.

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

It is a cyclic number.

It is not a de Polignac number, because 90100211 - 2¹⁰ = 90099187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90100201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3881 + ... + 13973.

It is an arithmetic number, because the mean of its divisors is an integer number (11507160).

Almost surely, 2^90100211 is an apocalyptic number.

90100211 is a deficient number, since it is larger than the sum of its proper divisors (1957069).

90100211 is a wasteful number, since it uses less digits than its factorization.

90100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10285.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 90100211 is about 9492.1130945643. The cubic root of 90100211 is about 448.3067411279.

The spelling of 90100211 in words is "ninety million, one hundred thousand, two hundred eleven".