45142313 has 4 divisors (see below), whose sum is σ = 45649620. Its totient is φ = 44635008.

The previous prime is 45142267. The next prime is 45142333. The reversal of 45142313 is 31324154.

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 23164969 + 21977344 = 4813^2 + 4688^2 .

It is a cyclic number.

It is not a de Polignac number, because 45142313 - 2⁶ = 45142249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45142333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253520 + ... + 253697.

It is an arithmetic number, because the mean of its divisors is an integer number (11412405).

Almost surely, 2^45142313 is an apocalyptic number.

It is an amenable number.

45142313 is a deficient number, since it is larger than the sum of its proper divisors (507307).

45142313 is an equidigital number, since it uses as much as digits as its factorization.

45142313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507306.

The product of its digits is 1440, while the sum is 23.

The square root of 45142313 is about 6718.8029439774. The cubic root of 45142313 is about 356.0638930265.

Adding to 45142313 its reverse (31324154), we get a palindrome (76466467).

The spelling of 45142313 in words is "forty-five million, one hundred forty-two thousand, three hundred thirteen".