152206189 has 4 divisors (see below), whose sum is σ = 152265724. Its totient is φ = 152146656.

The previous prime is 152206177. The next prime is 152206193. The reversal of 152206189 is 981602251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24900100 + 127306089 = 4990^2 + 11283^2 .

It is a cyclic number.

It is not a de Polignac number, because 152206189 - 2²³ = 143817581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152200189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25752 + ... + 31105.

It is an arithmetic number, because the mean of its divisors is an integer number (38066431).

Almost surely, 2^152206189 is an apocalyptic number.

It is an amenable number.

152206189 is a deficient number, since it is larger than the sum of its proper divisors (59535).

152206189 is an equidigital number, since it uses as much as digits as its factorization.

152206189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59534.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 152206189 is about 12337.1872402100. The cubic root of 152206189 is about 533.9215343382.

The spelling of 152206189 in words is "one hundred fifty-two million, two hundred six thousand, one hundred eighty-nine".