22148013 has 4 divisors (see below), whose sum is σ = 29530688. Its totient is φ = 14765340.

The previous prime is 22147997. The next prime is 22148023. The reversal of 22148013 is 31084122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22148013 - 2⁴ = 22147997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22148023) 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, 3691333 + ... + 3691338.

It is an arithmetic number, because the mean of its divisors is an integer number (7382672).

Almost surely, 2^22148013 is an apocalyptic number.

It is an amenable number.

22148013 is a deficient number, since it is larger than the sum of its proper divisors (7382675).

22148013 is an equidigital number, since it uses as much as digits as its factorization.

22148013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382674.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22148013 is about 4706.1675490785. The cubic root of 22148013 is about 280.8309203498.

The spelling of 22148013 in words is "twenty-two million, one hundred forty-eight thousand, thirteen".