38120189 has 4 divisors (see below), whose sum is σ = 38132640. Its totient is φ = 38107740.

The previous prime is 38120183. The next prime is 38120191. The reversal of 38120189 is 98102183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 38120189 - 2¹² = 38116093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38120183) 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, 1922 + ... + 8940.

It is an arithmetic number, because the mean of its divisors is an integer number (9533160).

Almost surely, 2^38120189 is an apocalyptic number.

It is an amenable number.

38120189 is a deficient number, since it is larger than the sum of its proper divisors (12451).

38120189 is an equidigital number, since it uses as much as digits as its factorization.

38120189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12450.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 38120189 is about 6174.1549219306. The cubic root of 38120189 is about 336.5516171710.

The spelling of 38120189 in words is "thirty-eight million, one hundred twenty thousand, one hundred eighty-nine".