389148539 has 8 divisors (see below), whose sum is σ = 419236272. Its totient is φ = 359082720.

The previous prime is 389148533. The next prime is 389148583. The reversal of 389148539 is 935841983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389148539 - 2²⁰ = 388099963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389148533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67172 + ... + 72734.

It is an arithmetic number, because the mean of its divisors is an integer number (52404534).

Almost surely, 2^389148539 is an apocalyptic number.

389148539 is a deficient number, since it is larger than the sum of its proper divisors (30087733).

389148539 is a wasteful number, since it uses less digits than its factorization.

389148539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957.

The product of its digits is 933120, while the sum is 50.

The square root of 389148539 is about 19726.8481770403. The cubic root of 389148539 is about 730.0822694545.

The spelling of 389148539 in words is "three hundred eighty-nine million, one hundred forty-eight thousand, five hundred thirty-nine".