45144523 has 4 divisors (see below), whose sum is σ = 45405648. Its totient is φ = 44883400.

The previous prime is 45144521. The next prime is 45144527. The reversal of 45144523 is 32544154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45144523 - 2¹ = 45144521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45144491 and 45144500.

It is not an unprimeable number, because it can be changed into a prime (45144521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130303 + ... + 130648.

It is an arithmetic number, because the mean of its divisors is an integer number (11351412).

Almost surely, 2^45144523 is an apocalyptic number.

45144523 is a deficient number, since it is larger than the sum of its proper divisors (261125).

45144523 is a wasteful number, since it uses less digits than its factorization.

45144523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261124.

The product of its digits is 9600, while the sum is 28.

The square root of 45144523 is about 6718.9674057849. The cubic root of 45144523 is about 356.0697034537.

Adding to 45144523 its reverse (32544154), we get a palindrome (77688677).

The spelling of 45144523 in words is "forty-five million, one hundred forty-four thousand, five hundred twenty-three".