22151573 has 2 divisors, whose sum is σ = 22151574. Its totient is φ = 22151572.

The previous prime is 22151551. The next prime is 22151593. The reversal of 22151573 is 37515122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17455684 + 4695889 = 4178^2 + 2167^2 .

It is a cyclic number.

It is not a de Polignac number, because 22151573 - 2¹⁰ = 22150549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22151593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11075786 + 11075787.

It is an arithmetic number, because the mean of its divisors is an integer number (11075787).

Almost surely, 2^22151573 is an apocalyptic number.

It is an amenable number.

22151573 is a deficient number, since it is larger than the sum of its proper divisors (1).

22151573 is an equidigital number, since it uses as much as digits as its factorization.

22151573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 26.

The square root of 22151573 is about 4706.5457609589. The cubic root of 22151573 is about 280.8459661617.

Adding to 22151573 its reverse (37515122), we get a palindrome (59666695).

The spelling of 22151573 in words is "twenty-two million, one hundred fifty-one thousand, five hundred seventy-three".