158998867 has 4 divisors (see below), whose sum is σ = 160914600. Its totient is φ = 157083136.

The previous prime is 158998849. The next prime is 158998871. The reversal of 158998867 is 768899851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158998867 - 2¹¹ = 158996819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158998817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957742 + ... + 957907.

It is an arithmetic number, because the mean of its divisors is an integer number (40228650).

Almost surely, 2^158998867 is an apocalyptic number.

158998867 is a deficient number, since it is larger than the sum of its proper divisors (1915733).

158998867 is an equidigital number, since it uses as much as digits as its factorization.

158998867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915732.

The product of its digits is 8709120, while the sum is 61.

The square root of 158998867 is about 12609.4752864661. The cubic root of 158998867 is about 541.7488646961.

The spelling of 158998867 in words is "one hundred fifty-eight million, nine hundred ninety-eight thousand, eight hundred sixty-seven".