13622573 has 2 divisors, whose sum is σ = 13622574. Its totient is φ = 13622572.

The previous prime is 13622561. The next prime is 13622591. The reversal of 13622573 is 37522631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11303044 + 2319529 = 3362^2 + 1523^2 .

It is an emirp because it is prime and its reverse (37522631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13622573 - 2⁸ = 13622317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13622503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6811286 + 6811287.

It is an arithmetic number, because the mean of its divisors is an integer number (6811287).

Almost surely, 2^13622573 is an apocalyptic number.

It is an amenable number.

13622573 is a deficient number, since it is larger than the sum of its proper divisors (1).

13622573 is an equidigital number, since it uses as much as digits as its factorization.

13622573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 13622573 is about 3690.8769960539. The cubic root of 13622573 is about 238.8286266439.

The spelling of 13622573 in words is "thirteen million, six hundred twenty-two thousand, five hundred seventy-three".