158520233 has 2 divisors, whose sum is σ = 158520234. Its totient is φ = 158520232.

The previous prime is 158520217. The next prime is 158520251. The reversal of 158520233 is 332025851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144889369 + 13630864 = 12037^2 + 3692^2 .

It is an emirp because it is prime and its reverse (332025851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158520233 - 2⁴ = 158520217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158520196 and 158520205.

It is not a weakly prime, because it can be changed into another prime (158520283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79260116 + 79260117.

It is an arithmetic number, because the mean of its divisors is an integer number (79260117).

Almost surely, 2^158520233 is an apocalyptic number.

It is an amenable number.

158520233 is a deficient number, since it is larger than the sum of its proper divisors (1).

158520233 is an equidigital number, since it uses as much as digits as its factorization.

158520233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 158520233 is about 12590.4818414547. The cubic root of 158520233 is about 541.2047097669.

The spelling of 158520233 in words is "one hundred fifty-eight million, five hundred twenty thousand, two hundred thirty-three".