45142745 has 16 divisors (see below), whose sum is σ = 55359552. Its totient is φ = 35328960.

The previous prime is 45142717. The next prime is 45142751. The reversal of 45142745 is 54724154.

45142745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45142745 - 2¹⁰ = 45141721 is a prime.

It is a super-2 number, since 2×45142745² = 4075734852270050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 86054 + ... + 86576.

It is an arithmetic number, because the mean of its divisors is an integer number (3459972).

Almost surely, 2^45142745 is an apocalyptic number.

It is an amenable number.

45142745 is a deficient number, since it is larger than the sum of its proper divisors (10216807).

45142745 is a wasteful number, since it uses less digits than its factorization.

45142745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its digits is 22400, while the sum is 32.

The square root of 45142745 is about 6718.8350924844. The cubic root of 45142745 is about 356.0650288353.

Adding to 45142745 its reverse (54724154), we get a palindrome (99866899).

The spelling of 45142745 in words is "forty-five million, one hundred forty-two thousand, seven hundred forty-five".