45133313 has 4 divisors (see below), whose sum is σ = 45190740. Its totient is φ = 45075888.

The previous prime is 45133271. The next prime is 45133321. The reversal of 45133313 is 31333154.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19963024 + 25170289 = 4468^2 + 5017^2 .

It is a cyclic number.

It is not a de Polignac number, because 45133313 - 2¹⁰ = 45132289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45133343) 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, 27518 + ... + 29111.

It is an arithmetic number, because the mean of its divisors is an integer number (11297685).

Almost surely, 2^45133313 is an apocalyptic number.

It is an amenable number.

45133313 is a deficient number, since it is larger than the sum of its proper divisors (57427).

45133313 is an equidigital number, since it uses as much as digits as its factorization.

45133313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57426.

The product of its digits is 1620, while the sum is 23.

The square root of 45133313 is about 6718.1331484275. The cubic root of 45133313 is about 356.0402286947.

Adding to 45133313 its reverse (31333154), we get a palindrome (76466467).

The spelling of 45133313 in words is "forty-five million, one hundred thirty-three thousand, three hundred thirteen".