45537223 has 2 divisors, whose sum is σ = 45537224. Its totient is φ = 45537222.

The previous prime is 45537211. The next prime is 45537241. The reversal of 45537223 is 32273554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45537223 - 2¹³ = 45529031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45537923) 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 as a sum of consecutive naturals, namely, 22768611 + 22768612.

It is an arithmetic number, because the mean of its divisors is an integer number (22768612).

Almost surely, 2^45537223 is an apocalyptic number.

45537223 is a deficient number, since it is larger than the sum of its proper divisors (1).

45537223 is an equidigital number, since it uses as much as digits as its factorization.

45537223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 31.

The square root of 45537223 is about 6748.1273698708. The cubic root of 45537223 is about 357.0991755262.

The spelling of 45537223 in words is "forty-five million, five hundred thirty-seven thousand, two hundred twenty-three".