158069217 has 32 divisors (see below), whose sum is σ = 226934784. Its totient is φ = 97675200.

The previous prime is 158069209. The next prime is 158069231. The reversal of 158069217 is 712960851.

It is not a de Polignac number, because 158069217 - 2³ = 158069209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158069207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243988 + ... + 244634.

It is an arithmetic number, because the mean of its divisors is an integer number (7091712).

Almost surely, 2^158069217 is an apocalyptic number.

It is an amenable number.

158069217 is a deficient number, since it is larger than the sum of its proper divisors (68865567).

158069217 is a wasteful number, since it uses less digits than its factorization.

158069217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 158069217 is about 12572.5580929260. The cubic root of 158069217 is about 540.6909502313.

The spelling of 158069217 in words is "one hundred fifty-eight million, sixty-nine thousand, two hundred seventeen".