152449009 has 2 divisors, whose sum is σ = 152449010. Its totient is φ = 152449008.

The previous prime is 152448997. The next prime is 152449043. The reversal of 152449009 is 900944251.

It is an a-pointer prime, because the next prime (152449043) can be obtained adding 152449009 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120560400 + 31888609 = 10980^2 + 5647^2 .

It is a cyclic number.

It is not a de Polignac number, because 152449009 - 2²¹ = 150351857 is a prime.

It is not a weakly prime, because it can be changed into another prime (152449069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76224504 + 76224505.

It is an arithmetic number, because the mean of its divisors is an integer number (76224505).

Almost surely, 2^152449009 is an apocalyptic number.

It is an amenable number.

152449009 is a deficient number, since it is larger than the sum of its proper divisors (1).

152449009 is an equidigital number, since it uses as much as digits as its factorization.

152449009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 152449009 is about 12347.0242973763. The cubic root of 152449009 is about 534.2053115517.

The spelling of 152449009 in words is "one hundred fifty-two million, four hundred forty-nine thousand, nine".