158986399 has 8 divisors (see below), whose sum is σ = 186781392. Its totient is φ = 133415040.

The previous prime is 158986391. The next prime is 158986403. The reversal of 158986399 is 993689851.

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

It is not a de Polignac number, because 158986399 - 2³ = 158986391 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 (158986391) 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 7 ways as a sum of consecutive naturals, for example, 555754 + ... + 556039.

It is an arithmetic number, because the mean of its divisors is an integer number (23347674).

Almost surely, 2^158986399 is an apocalyptic number.

158986399 is a deficient number, since it is larger than the sum of its proper divisors (27794993).

158986399 is a wasteful number, since it uses less digits than its factorization.

158986399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111817.

The product of its digits is 4199040, while the sum is 58.

The square root of 158986399 is about 12608.9808866538. The cubic root of 158986399 is about 541.7347037956.

The spelling of 158986399 in words is "one hundred fifty-eight million, nine hundred eighty-six thousand, three hundred ninety-nine".