42712045 has 4 divisors (see below), whose sum is σ = 51254460. Its totient is φ = 34169632.

The previous prime is 42712013. The next prime is 42712063. The reversal of 42712045 is 54021724.

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 12802084 + 29909961 = 3578^2 + 5469^2 .

It is a cyclic number.

It is not a de Polignac number, because 42712045 - 2⁵ = 42712013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271200 + ... + 4271209.

It is an arithmetic number, because the mean of its divisors is an integer number (12813615).

Almost surely, 2^42712045 is an apocalyptic number.

It is an amenable number.

42712045 is a deficient number, since it is larger than the sum of its proper divisors (8542415).

42712045 is an equidigital number, since it uses as much as digits as its factorization.

42712045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542414.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42712045 is about 6535.4452793976. The cubic root of 42712045 is about 349.5560220825.

Adding to 42712045 its reverse (54021724), we get a palindrome (96733769).

The spelling of 42712045 in words is "forty-two million, seven hundred twelve thousand, forty-five".