158358397 has 2 divisors, whose sum is σ = 158358398. Its totient is φ = 158358396.

The previous prime is 158358373. The next prime is 158358443. The reversal of 158358397 is 793853851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116510436 + 41847961 = 10794^2 + 6469^2 .

It is a cyclic number.

It is not a de Polignac number, because 158358397 - 2¹¹ = 158356349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158358397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158358307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79179198 + 79179199.

It is an arithmetic number, because the mean of its divisors is an integer number (79179199).

Almost surely, 2^158358397 is an apocalyptic number.

It is an amenable number.

158358397 is a deficient number, since it is larger than the sum of its proper divisors (1).

158358397 is an equidigital number, since it uses as much as digits as its factorization.

158358397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 49.

The square root of 158358397 is about 12584.0532818325. The cubic root of 158358397 is about 541.0204720268.

The spelling of 158358397 in words is "one hundred fifty-eight million, three hundred fifty-eight thousand, three hundred ninety-seven".