152246209 has 2 divisors, whose sum is σ = 152246210. Its totient is φ = 152246208.

The previous prime is 152246191. The next prime is 152246261. The reversal of 152246209 is 902642251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149450625 + 2795584 = 12225^2 + 1672^2 .

It is a cyclic number.

It is not a de Polignac number, because 152246209 - 2²¹ = 150149057 is a prime.

It is not a weakly prime, because it can be changed into another prime (152246279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76123104 + 76123105.

It is an arithmetic number, because the mean of its divisors is an integer number (76123105).

Almost surely, 2^152246209 is an apocalyptic number.

It is an amenable number.

152246209 is a deficient number, since it is larger than the sum of its proper divisors (1).

152246209 is an equidigital number, since it uses as much as digits as its factorization.

152246209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 152246209 is about 12338.8090592245. The cubic root of 152246209 is about 533.9683253994.

The spelling of 152246209 in words is "one hundred fifty-two million, two hundred forty-six thousand, two hundred nine".