42152945 has 16 divisors (see below), whose sum is σ = 53712720. Its totient is φ = 31647744.

The previous prime is 42152939. The next prime is 42152959. The reversal of 42152945 is 54925124.

42152945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 214369 + 41938576 = 463^2 + 6476^2 .

It is not a de Polignac number, because 42152945 - 2²⁰ = 41104369 is a prime.

It is a Curzon 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, 51701 + ... + 52509.

It is an arithmetic number, because the mean of its divisors is an integer number (3357045).

Almost surely, 2^42152945 is an apocalyptic number.

It is an amenable number.

42152945 is a deficient number, since it is larger than the sum of its proper divisors (11559775).

42152945 is a wasteful number, since it uses less digits than its factorization.

42152945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its digits is 14400, while the sum is 32.

The square root of 42152945 is about 6492.5299383214. The cubic root of 42152945 is about 348.0240905726.

The spelling of 42152945 in words is "forty-two million, one hundred fifty-two thousand, nine hundred forty-five".