158368393 has 2 divisors, whose sum is σ = 158368394. Its totient is φ = 158368392.

The previous prime is 158368387. The next prime is 158368403. The reversal of 158368393 is 393863851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103489929 + 54878464 = 10173^2 + 7408^2 .

It is a cyclic number.

It is not a de Polignac number, because 158368393 - 2⁵ = 158368361 is a prime.

It is not a weakly prime, because it can be changed into another prime (158368313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79184196 + 79184197.

It is an arithmetic number, because the mean of its divisors is an integer number (79184197).

Almost surely, 2^158368393 is an apocalyptic number.

It is an amenable number.

158368393 is a deficient number, since it is larger than the sum of its proper divisors (1).

158368393 is an equidigital number, since it uses as much as digits as its factorization.

158368393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 158368393 is about 12584.4504448943. The cubic root of 158368393 is about 541.0318553340.

The spelling of 158368393 in words is "one hundred fifty-eight million, three hundred sixty-eight thousand, three hundred ninety-three".