38145803 has 4 divisors (see below), whose sum is σ = 38159520. Its totient is φ = 38132088.

The previous prime is 38145769. The next prime is 38145827. The reversal of 38145803 is 30854183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30854183 = 239 ⋅129097.

It is a cyclic number.

It is not a de Polignac number, because 38145803 - 2¹⁰ = 38144779 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 38145803.

It is not an unprimeable number, because it can be changed into a prime (38145883) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1043 + ... + 8796.

It is an arithmetic number, because the mean of its divisors is an integer number (9539880).

Almost surely, 2^38145803 is an apocalyptic number.

38145803 is a deficient number, since it is larger than the sum of its proper divisors (13717).

38145803 is an equidigital number, since it uses as much as digits as its factorization.

38145803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 38145803 is about 6176.2288655781. The cubic root of 38145803 is about 336.6269797133.

Adding to 38145803 its reverse (30854183), we get a palindrome (68999986).

The spelling of 38145803 in words is "thirty-eight million, one hundred forty-five thousand, eight hundred three".