158217067 has 2 divisors, whose sum is σ = 158217068. Its totient is φ = 158217066.

The previous prime is 158217049. The next prime is 158217089. The reversal of 158217067 is 760712851.

It is a weak prime.

It is an emirp because it is prime and its reverse (760712851) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158217067 is a prime.

It is not a weakly prime, because it can be changed into another prime (158217467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79108533 + 79108534.

It is an arithmetic number, because the mean of its divisors is an integer number (79108534).

Almost surely, 2^158217067 is an apocalyptic number.

158217067 is a deficient number, since it is larger than the sum of its proper divisors (1).

158217067 is an equidigital number, since it uses as much as digits as its factorization.

158217067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 158217067 is about 12578.4365880661. The cubic root of 158217067 is about 540.8594760774.

The spelling of 158217067 in words is "one hundred fifty-eight million, two hundred seventeen thousand, sixty-seven".