45081523 has 2 divisors, whose sum is σ = 45081524. Its totient is φ = 45081522.

The previous prime is 45081511. The next prime is 45081527. The reversal of 45081523 is 32518054.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45081523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45081491 and 45081500.

It is not a weakly prime, because it can be changed into another prime (45081527) 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, 22540761 + 22540762.

It is an arithmetic number, because the mean of its divisors is an integer number (22540762).

Almost surely, 2^45081523 is an apocalyptic number.

45081523 is a deficient number, since it is larger than the sum of its proper divisors (1).

45081523 is an equidigital number, since it uses as much as digits as its factorization.

45081523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 45081523 is about 6714.2775486273. The cubic root of 45081523 is about 355.9039924374.

Adding to 45081523 its reverse (32518054), we get a palindrome (77599577).

The spelling of 45081523 in words is "forty-five million, eighty-one thousand, five hundred twenty-three".