190338539 has 4 divisors (see below), whose sum is σ = 190368024. Its totient is φ = 190309056.

The previous prime is 190338527. The next prime is 190338557. The reversal of 190338539 is 935833091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935833091 = 149 ⋅6280759.

It is a cyclic number.

It is not a de Polignac number, because 190338539 - 2⁸ = 190338283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190338496 and 190338505.

It is not an unprimeable number, because it can be changed into a prime (190338509) 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, 422 + ... + 19515.

It is an arithmetic number, because the mean of its divisors is an integer number (47592006).

Almost surely, 2^190338539 is an apocalyptic number.

190338539 is a deficient number, since it is larger than the sum of its proper divisors (29485).

190338539 is an equidigital number, since it uses as much as digits as its factorization.

190338539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29484.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 190338539 is about 13796.3233870477. The cubic root of 190338539 is about 575.2309484371.

It can be divided in two parts, 19033 and 8539, that added together give a palindrome (27572).

The spelling of 190338539 in words is "one hundred ninety million, three hundred thirty-eight thousand, five hundred thirty-nine".