22130491 has 4 divisors (see below), whose sum is σ = 22174992. Its totient is φ = 22085992.

The previous prime is 22130483. The next prime is 22130503. The reversal of 22130491 is 19403122.

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

It is a cyclic number.

It is not a de Polignac number, because 22130491 - 2³ = 22130483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22130401) 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, 21496 + ... + 22501.

It is an arithmetic number, because the mean of its divisors is an integer number (5543748).

Almost surely, 2^22130491 is an apocalyptic number.

22130491 is a deficient number, since it is larger than the sum of its proper divisors (44501).

22130491 is an equidigital number, since it uses as much as digits as its factorization.

22130491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44500.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 22130491 is about 4704.3055810608. The cubic root of 22130491 is about 280.7568427097.

The spelling of 22130491 in words is "twenty-two million, one hundred thirty thousand, four hundred ninety-one".