152209 has 4 divisors (see below), whose sum is σ = 160240. Its totient is φ = 144180.

The previous prime is 152203. The next prime is 152213. The reversal of 152209 is 902251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152209 - 2⁷ = 152081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 8011 = 152209 / (1 + 5 + 2 + 2 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152203) 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 3 ways as a sum of consecutive naturals, for example, 3987 + ... + 4024.

It is an arithmetic number, because the mean of its divisors is an integer number (40060).

2¹⁵²²⁰⁹ is an apocalyptic number.

152209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

152209 is a deficient number, since it is larger than the sum of its proper divisors (8031).

152209 is an equidigital number, since it uses as much as digits as its factorization.

152209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 152209 is about 390.1397185625. The cubic root of 152209 is about 53.3924821204.

It can be divided in two parts, 152 and 209, that added together give a square (361 = 19²).

The spelling of 152209 in words is "one hundred fifty-two thousand, two hundred nine".