2190106 has 16 divisors (see below), whose sum is σ = 3504384. Its totient is φ = 1024144.

The previous prime is 2190103. The next prime is 2190107. The reversal of 2190106 is 6010912.

It is not an unprimeable number, because it can be changed into a prime (2190103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (219024).

2^2190106 is an apocalyptic number.

2190106 is a deficient number, since it is larger than the sum of its proper divisors (1314278).

2190106 is a wasteful number, since it uses less digits than its factorization.

2190106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2190106 is about 1479.9006723426. The cubic root of 2190106 is about 129.8638811928.

The spelling of 2190106 in words is "two million, one hundred ninety thousand, one hundred six".