180086429 has 2 divisors, whose sum is σ = 180086430. Its totient is φ = 180086428.

The previous prime is 180086393. The next prime is 180086447. The reversal of 180086429 is 924680081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172396900 + 7689529 = 13130^2 + 2773^2 .

It is a cyclic number.

It is not a de Polignac number, because 180086429 - 2²⁴ = 163309213 is a prime.

It is a super-2 number, since 2×180086429² = 64862243819944082, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 180086392 and 180086401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180086449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90043214 + 90043215.

It is an arithmetic number, because the mean of its divisors is an integer number (90043215).

Almost surely, 2^180086429 is an apocalyptic number.

It is an amenable number.

180086429 is a deficient number, since it is larger than the sum of its proper divisors (1).

180086429 is an equidigital number, since it uses as much as digits as its factorization.

180086429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 180086429 is about 13419.6284970934. The cubic root of 180086429 is about 564.7119726495.

The spelling of 180086429 in words is "one hundred eighty million, eighty-six thousand, four hundred twenty-nine".