38200145 has 4 divisors (see below), whose sum is σ = 45840180. Its totient is φ = 30560112.

The previous prime is 38200103. The next prime is 38200147. The reversal of 38200145 is 54100283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54100283 = 29 ⋅1865527.

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 32069569 = 2476^2 + 5663^2 .

It is a cyclic number.

It is not a de Polignac number, because 38200145 - 2²² = 34005841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38200145.

It is not an unprimeable number, because it can be changed into a prime (38200147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820010 + ... + 3820019.

It is an arithmetic number, because the mean of its divisors is an integer number (11460045).

Almost surely, 2^38200145 is an apocalyptic number.

It is an amenable number.

38200145 is a deficient number, since it is larger than the sum of its proper divisors (7640035).

38200145 is an equidigital number, since it uses as much as digits as its factorization.

38200145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640034.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 38200145 is about 6180.6265863584. The cubic root of 38200145 is about 336.7867552947.

The spelling of 38200145 in words is "thirty-eight million, two hundred thousand, one hundred forty-five".