152209409 has 12 divisors (see below), whose sum is σ = 167975808. Its totient is φ = 137817240.

The previous prime is 152209397. The next prime is 152209427. The reversal of 152209409 is 904902251.

It is a de Polignac number, because none of the positive numbers 2^k-152209409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152200409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29432 + ... + 34214.

It is an arithmetic number, because the mean of its divisors is an integer number (13997984).

Almost surely, 2^152209409 is an apocalyptic number.

It is an amenable number.

152209409 is a deficient number, since it is larger than the sum of its proper divisors (15766399).

152209409 is a wasteful number, since it uses less digits than its factorization.

152209409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 152209409 is about 12337.3177392819. The cubic root of 152209409 is about 533.9252994396.

The spelling of 152209409 in words is "one hundred fifty-two million, two hundred nine thousand, four hundred nine".