158012233 has 2 divisors, whose sum is σ = 158012234. Its totient is φ = 158012232.

The previous prime is 158012219. The next prime is 158012293. The reversal of 158012233 is 332210851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153462544 + 4549689 = 12388^2 + 2133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158012233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158012198 and 158012207.

It is not a weakly prime, because it can be changed into another prime (158012293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79006116 + 79006117.

It is an arithmetic number, because the mean of its divisors is an integer number (79006117).

Almost surely, 2^158012233 is an apocalyptic number.

It is an amenable number.

158012233 is a deficient number, since it is larger than the sum of its proper divisors (1).

158012233 is an equidigital number, since it uses as much as digits as its factorization.

158012233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 158012233 is about 12570.2916831711. The cubic root of 158012233 is about 540.6259693390.

The spelling of 158012233 in words is "one hundred fifty-eight million, twelve thousand, two hundred thirty-three".