158873009 has 8 divisors (see below), whose sum is σ = 160513320. Its totient is φ = 157239936.

The previous prime is 158872999. The next prime is 158873027. The reversal of 158873009 is 900378851.

It is a happy number.

158873009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12390400 + 146482609 = 3520^2 + 12103^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158873009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158875009) 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, 49547 + ... + 52655.

It is an arithmetic number, because the mean of its divisors is an integer number (20064165).

Almost surely, 2^158873009 is an apocalyptic number.

It is an amenable number.

158873009 is a deficient number, since it is larger than the sum of its proper divisors (1640311).

158873009 is a wasteful number, since it uses less digits than its factorization.

158873009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 158873009 is about 12604.4836863713. The cubic root of 158873009 is about 541.6058837463.

The spelling of 158873009 in words is "one hundred fifty-eight million, eight hundred seventy-three thousand, nine".