180769231 has 2 divisors, whose sum is σ = 180769232. Its totient is φ = 180769230.

The previous prime is 180769219. The next prime is 180769241. The reversal of 180769231 is 132967081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 180769231 - 2¹¹ = 180767183 is a prime.

It is a super-2 number, since 2×180769231² = 65355029752662722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180769201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90384615 + 90384616.

It is an arithmetic number, because the mean of its divisors is an integer number (90384616).

Almost surely, 2^180769231 is an apocalyptic number.

180769231 is a deficient number, since it is larger than the sum of its proper divisors (1).

180769231 is an equidigital number, since it uses as much as digits as its factorization.

180769231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 180769231 is about 13445.0448493116. The cubic root of 180769231 is about 565.4247788472.

The spelling of 180769231 in words is "one hundred eighty million, seven hundred sixty-nine thousand, two hundred thirty-one".