389143157 has 16 divisors (see below), whose sum is σ = 425225472. Its totient is φ = 353980800.

The previous prime is 389143147. The next prime is 389143193. The reversal of 389143157 is 751341983.

It is a cyclic number.

It is not a de Polignac number, because 389143157 - 2²⁴ = 372365941 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 (389143147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268208 + ... + 269654.

It is an arithmetic number, because the mean of its divisors is an integer number (26576592).

Almost surely, 2^389143157 is an apocalyptic number.

It is an amenable number.

389143157 is a deficient number, since it is larger than the sum of its proper divisors (36082315).

389143157 is a wasteful number, since it uses less digits than its factorization.

389143157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748.

The product of its digits is 90720, while the sum is 41.

The square root of 389143157 is about 19726.7117634947. The cubic root of 389143157 is about 730.0789037124.

The spelling of 389143157 in words is "three hundred eighty-nine million, one hundred forty-three thousand, one hundred fifty-seven".