2189526106 has 4 divisors (see below), whose sum is σ = 3284289162. Its totient is φ = 1094763052.

The previous prime is 2189526103. The next prime is 2189526121. The reversal of 2189526106 is 6016259812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1215149881 + 974376225 = 34859^2 + 31215^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2189526103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547381525 + ... + 547381528.

Almost surely, 2^2189526106 is an apocalyptic number.

2189526106 is a deficient number, since it is larger than the sum of its proper divisors (1094763056).

2189526106 is a wasteful number, since it uses less digits than its factorization.

2189526106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094763055.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2189526106 is about 46792.3723057509. The cubic root of 2189526106 is about 1298.5241843966.

The spelling of 2189526106 in words is "two billion, one hundred eighty-nine million, five hundred twenty-six thousand, one hundred six".