2130566 has 4 divisors (see below), whose sum is σ = 3195852. Its totient is φ = 1065282.

The previous prime is 2130539. The next prime is 2130577. The reversal of 2130566 is 6650312.

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

It is a super-2 number, since 2×2130566² = 9078622960712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532640 + ... + 532643.

It is an arithmetic number, because the mean of its divisors is an integer number (798963).

2^2130566 is an apocalyptic number.

2130566 is a deficient number, since it is larger than the sum of its proper divisors (1065286).

2130566 is a wasteful number, since it uses less digits than its factorization.

2130566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065285.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2130566 is about 1459.6458474575. The cubic root of 2130566 is about 128.6762307166.

Adding to 2130566 its reverse (6650312), we get a palindrome (8780878).

The spelling of 2130566 in words is "two million, one hundred thirty thousand, five hundred sixty-six".