158647 has 2 divisors, whose sum is σ = 158648. Its totient is φ = 158646.

The previous prime is 158633. The next prime is 158657. The reversal of 158647 is 746851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158647 - 2⁷ = 158519 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79323 + 79324.

It is an arithmetic number, because the mean of its divisors is an integer number (79324).

2¹⁵⁸⁶⁴⁷ is an apocalyptic number.

158647 is a deficient number, since it is larger than the sum of its proper divisors (1).

158647 is an equidigital number, since it uses as much as digits as its factorization.

158647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 158647 is about 398.3051593942. The cubic root of 158647 is about 54.1348936608.

The spelling of 158647 in words is "one hundred fifty-eight thousand, six hundred forty-seven".