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158233 is a prime number
BaseRepresentation
bin100110101000011001
322001001111
4212220121
520030413
63220321
71226215
oct465031
9261044
10158233
11a8979
12776a1
135703a
1441945
1531d3d
hex26a19

158233 has 2 divisors, whose sum is σ = 158234. Its totient is φ = 158232.

The previous prime is 158231. The next prime is 158243. The reversal of 158233 is 332851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149769 + 8464 = 387^2 + 92^2 .

It is an emirp because it is prime and its reverse (332851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158233 - 21 = 158231 is a prime.

Together with 158231, it forms a pair of twin primes.

It is equal to p14539 and since 158233 and 14539 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (158231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79116 + 79117.

It is an arithmetic number, because the mean of its divisors is an integer number (79117).

2158233 is an apocalyptic number.

It is an amenable number.

158233 is a deficient number, since it is larger than the sum of its proper divisors (1).

158233 is an equidigital number, since it uses as much as digits as its factorization.

158233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 158233 is about 397.7851178714. The cubic root of 158233 is about 54.0877630935.

The spelling of 158233 in words is "one hundred fifty-eight thousand, two hundred thirty-three".