45144813 has 16 divisors (see below), whose sum is σ = 70471296. Its totient is φ = 25167360.

The previous prime is 45144811. The next prime is 45144821. The reversal of 45144813 is 31844154.

It is not a de Polignac number, because 45144813 - 2¹ = 45144811 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45144811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25356 + ... + 27077.

It is an arithmetic number, because the mean of its divisors is an integer number (4404456).

Almost surely, 2^45144813 is an apocalyptic number.

It is an amenable number.

45144813 is a deficient number, since it is larger than the sum of its proper divisors (25326483).

45144813 is a wasteful number, since it uses less digits than its factorization.

45144813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52484.

The product of its digits is 7680, while the sum is 30.

The square root of 45144813 is about 6718.9889864473. The cubic root of 45144813 is about 356.0704658938.

Adding to 45144813 its reverse (31844154), we get a palindrome (76988967).

The spelling of 45144813 in words is "forty-five million, one hundred forty-four thousand, eight hundred thirteen".