22150013 has 4 divisors (see below), whose sum is σ = 22748700. Its totient is φ = 21551328.

The previous prime is 22150001. The next prime is 22150061. The reversal of 22150013 is 31005122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31005122 = 2 ⋅15502561.

It can be written as a sum of positive squares in 2 ways, for example, as 19201924 + 2948089 = 4382^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 22150013 - 2⁶ = 22149949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22150013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299288 + ... + 299361.

It is an arithmetic number, because the mean of its divisors is an integer number (5687175).

Almost surely, 2^22150013 is an apocalyptic number.

It is an amenable number.

22150013 is a deficient number, since it is larger than the sum of its proper divisors (598687).

22150013 is an equidigital number, since it uses as much as digits as its factorization.

22150013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598686.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 22150013 is about 4706.3800314042. The cubic root of 22150013 is about 280.8393732515.

Adding to 22150013 its reverse (31005122), we get a palindrome (53155135).

The spelling of 22150013 in words is "twenty-two million, one hundred fifty thousand, thirteen".