158393 has 2 divisors, whose sum is σ = 158394. Its totient is φ = 158392.

The previous prime is 158371. The next prime is 158407. The reversal of 158393 is 393851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157609 + 784 = 397^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 158393 - 2⁶ = 158329 is a prime.

It is not a weakly prime, because it can be changed into another prime (158303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79196 + 79197.

It is an arithmetic number, because the mean of its divisors is an integer number (79197).

2¹⁵⁸³⁹³ is an apocalyptic number.

It is an amenable number.

158393 is a deficient number, since it is larger than the sum of its proper divisors (1).

158393 is an equidigital number, since it uses as much as digits as its factorization.

158393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 158393 is about 397.9861806646. The cubic root of 158393 is about 54.1059875406.

The spelling of 158393 in words is "one hundred fifty-eight thousand, three hundred ninety-three".