45239105 has 4 divisors (see below), whose sum is σ = 54286932. Its totient is φ = 36191280.

The previous prime is 45239093. The next prime is 45239119. The reversal of 45239105 is 50193254.

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 6848689 + 38390416 = 2617^2 + 6196^2 .

It is not a de Polignac number, because 45239105 - 2¹⁸ = 44976961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 4523906 + ... + 4523915.

It is an arithmetic number, because the mean of its divisors is an integer number (13571733).

Almost surely, 2^45239105 is an apocalyptic number.

It is an amenable number.

45239105 is a deficient number, since it is larger than the sum of its proper divisors (9047827).

45239105 is an equidigital number, since it uses as much as digits as its factorization.

45239105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9047826.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 45239105 is about 6726.0021558129. The cubic root of 45239105 is about 356.3181964448.

Subtracting from 45239105 its sum of digits (29), we obtain a square (45239076 = 6726²).

The spelling of 45239105 in words is "forty-five million, two hundred thirty-nine thousand, one hundred five".