45581623 has 2 divisors, whose sum is σ = 45581624. Its totient is φ = 45581622.

The previous prime is 45581593. The next prime is 45581639. The reversal of 45581623 is 32618554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45581623 - 2⁹ = 45581111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45581923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22790811 + 22790812.

It is an arithmetic number, because the mean of its divisors is an integer number (22790812).

Almost surely, 2^45581623 is an apocalyptic number.

45581623 is a deficient number, since it is larger than the sum of its proper divisors (1).

45581623 is an equidigital number, since it uses as much as digits as its factorization.

45581623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 45581623 is about 6751.4163699182. The cubic root of 45581623 is about 357.2151982145.

The spelling of 45581623 in words is "forty-five million, five hundred eighty-one thousand, six hundred twenty-three".