38142565 has 4 divisors (see below), whose sum is σ = 45771084. Its totient is φ = 30514048.

The previous prime is 38142553. The next prime is 38142571. The reversal of 38142565 is 56524183.

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 8538084 + 29604481 = 2922^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 38142565 - 2⁹ = 38142053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38142565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3814252 + ... + 3814261.

It is an arithmetic number, because the mean of its divisors is an integer number (11442771).

Almost surely, 2^38142565 is an apocalyptic number.

It is an amenable number.

38142565 is a deficient number, since it is larger than the sum of its proper divisors (7628519).

38142565 is an equidigital number, since it uses as much as digits as its factorization.

38142565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628518.

The product of its digits is 28800, while the sum is 34.

The square root of 38142565 is about 6175.9667259466. The cubic root of 38142565 is about 336.6174546025.

The spelling of 38142565 in words is "thirty-eight million, one hundred forty-two thousand, five hundred sixty-five".