45123513 has 8 divisors (see below), whose sum is σ = 60202848. Its totient is φ = 30063264.

The previous prime is 45123503. The next prime is 45123521. The reversal of 45123513 is 31532154.

45123513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45123513 - 2⁴ = 45123497 is a prime.

It is a super-2 number, since 2×45123513² = 4072262850922338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45123503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206 + ... + 9752.

It is an arithmetic number, because the mean of its divisors is an integer number (7525356).

Almost surely, 2^45123513 is an apocalyptic number.

It is an amenable number.

45123513 is a deficient number, since it is larger than the sum of its proper divisors (15079335).

45123513 is a wasteful number, since it uses less digits than its factorization.

45123513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9543.

The product of its digits is 1800, while the sum is 24.

The square root of 45123513 is about 6717.4037395410. The cubic root of 45123513 is about 356.0144572886.

Adding to 45123513 its reverse (31532154), we get a palindrome (76655667).

The spelling of 45123513 in words is "forty-five million, one hundred twenty-three thousand, five hundred thirteen".