152223509 has 2 divisors, whose sum is σ = 152223510. Its totient is φ = 152223508.

The previous prime is 152223451. The next prime is 152223517. The reversal of 152223509 is 905322251.

152223509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103083409 + 49140100 = 10153^2 + 7010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152223509 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_8562206 and since 152223509 and 8562206 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152225509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76111754 + 76111755.

It is an arithmetic number, because the mean of its divisors is an integer number (76111755).

Almost surely, 2^152223509 is an apocalyptic number.

It is an amenable number.

152223509 is a deficient number, since it is larger than the sum of its proper divisors (1).

152223509 is an equidigital number, since it uses as much as digits as its factorization.

152223509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 152223509 is about 12337.8891630619. The cubic root of 152223509 is about 533.9417857491.

The spelling of 152223509 in words is "one hundred fifty-two million, two hundred twenty-three thousand, five hundred nine".