158789069 has 8 divisors (see below), whose sum is σ = 161791992. Its totient is φ = 155814400.

The previous prime is 158789053. The next prime is 158789087. The reversal of 158789069 is 960987851.

It can be written as a sum of positive squares in 4 ways, for example, as 27984100 + 130804969 = 5290^2 + 11437^2 .

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 158789069 - 2⁴ = 158789053 is a prime.

It is a super-2 number, since 2×158789069² = 50427936867773522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158789069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158789009) 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, 4457 + ... + 18369.

It is an arithmetic number, because the mean of its divisors is an integer number (20223999).

Almost surely, 2^158789069 is an apocalyptic number.

It is an amenable number.

158789069 is a deficient number, since it is larger than the sum of its proper divisors (3002923).

158789069 is a wasteful number, since it uses less digits than its factorization.

158789069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14127.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 158789069 is about 12601.1534789479. The cubic root of 158789069 is about 541.5104817495.

The spelling of 158789069 in words is "one hundred fifty-eight million, seven hundred eighty-nine thousand, sixty-nine".