158573109 has 8 divisors (see below), whose sum is σ = 220623552. Its totient is φ = 101119040.

The previous prime is 158573081. The next prime is 158573113. The reversal of 158573109 is 901375851.

158573109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 158573109 - 2¹⁵ = 158540341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158573209) 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, 1149012 + ... + 1149149.

It is an arithmetic number, because the mean of its divisors is an integer number (27577944).

Almost surely, 2^158573109 is an apocalyptic number.

It is an amenable number.

158573109 is a deficient number, since it is larger than the sum of its proper divisors (62050443).

158573109 is a wasteful number, since it uses less digits than its factorization.

158573109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298187.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 158573109 is about 12592.5815065855. The cubic root of 158573109 is about 541.2648778150.

The spelling of 158573109 in words is "one hundred fifty-eight million, five hundred seventy-three thousand, one hundred nine".