158534389 has 8 divisors (see below), whose sum is σ = 171316152. Its totient is φ = 145836480.

The previous prime is 158534359. The next prime is 158534419. The reversal of 158534389 is 983435851.

It is an interprime number because it is at equal distance from previous prime (158534359) and next prime (158534419).

It can be written as a sum of positive squares in 4 ways, for example, as 27615025 + 130919364 = 5255^2 + 11442^2 .

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 158534389 - 2⁹ = 158533877 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 (158534359) 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, 17002 + ... + 24619.

It is an arithmetic number, because the mean of its divisors is an integer number (21414519).

Almost surely, 2^158534389 is an apocalyptic number.

It is an amenable number.

158534389 is a deficient number, since it is larger than the sum of its proper divisors (12781763).

158534389 is a wasteful number, since it uses less digits than its factorization.

158534389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41927.

The product of its digits is 518400, while the sum is 46.

The square root of 158534389 is about 12591.0439996054. The cubic root of 158534389 is about 541.2208193105.

The spelling of 158534389 in words is "one hundred fifty-eight million, five hundred thirty-four thousand, three hundred eighty-nine".