42975365 has 8 divisors (see below), whose sum is σ = 52102680. Its totient is φ = 34025472.

The previous prime is 42975347. The next prime is 42975391. The reversal of 42975365 is 56357924.

42975365 = 230² + 231² + ... + 520².

It can be written as a sum of positive squares in 4 ways, for example, as 14577124 + 28398241 = 3818^2 + 5329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42975365 - 2⁶ = 42975301 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43820 + ... + 44789.

It is an arithmetic number, because the mean of its divisors is an integer number (6512835).

Almost surely, 2^42975365 is an apocalyptic number.

It is an amenable number.

42975365 is a deficient number, since it is larger than the sum of its proper divisors (9127315).

42975365 is an equidigital number, since it uses as much as digits as its factorization.

42975365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88711.

The product of its digits is 226800, while the sum is 41.

The square root of 42975365 is about 6555.5598540476. The cubic root of 42975365 is about 350.2728892183.

The spelling of 42975365 in words is "forty-two million, nine hundred seventy-five thousand, three hundred sixty-five".