158217059 has 24 divisors (see below), whose sum is σ = 214055520. Its totient is φ = 113794560.

The previous prime is 158217049. The next prime is 158217067. The reversal of 158217059 is 950712851.

It is not a de Polignac number, because 158217059 - 2⁴ = 158217043 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (158217029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3827 + ... + 18195.

It is an arithmetic number, because the mean of its divisors is an integer number (8918980).

Almost surely, 2^158217059 is an apocalyptic number.

158217059 is a deficient number, since it is larger than the sum of its proper divisors (55838461).

158217059 is a wasteful number, since it uses less digits than its factorization.

158217059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14411 (or 14400 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 158217059 is about 12578.4362700616. The cubic root of 158217059 is about 540.8594669615.

The spelling of 158217059 in words is "one hundred fifty-eight million, two hundred seventeen thousand, fifty-nine".