180252389 has 4 divisors (see below), whose sum is σ = 180671040. Its totient is φ = 179833740.

The previous prime is 180252367. The next prime is 180252427. The reversal of 180252389 is 983252081.

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 180252389 - 2²⁰ = 179203813 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 (180252329) 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, 208679 + ... + 209540.

It is an arithmetic number, because the mean of its divisors is an integer number (45167760).

Almost surely, 2^180252389 is an apocalyptic number.

It is an amenable number.

180252389 is a deficient number, since it is larger than the sum of its proper divisors (418651).

180252389 is an equidigital number, since it uses as much as digits as its factorization.

180252389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418650.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 180252389 is about 13425.8105528121. The cubic root of 180252389 is about 564.8853909074.

The spelling of 180252389 in words is "one hundred eighty million, two hundred fifty-two thousand, three hundred eighty-nine".