180164629 has 2 divisors, whose sum is σ = 180164630. Its totient is φ = 180164628.

The previous prime is 180164627. The next prime is 180164641. The reversal of 180164629 is 926461081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97318225 + 82846404 = 9865^2 + 9102^2 .

It is a cyclic number.

It is not a de Polignac number, because 180164629 - 2¹ = 180164627 is a prime.

Together with 180164627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180164627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90082314 + 90082315.

It is an arithmetic number, because the mean of its divisors is an integer number (90082315).

Almost surely, 2^180164629 is an apocalyptic number.

It is an amenable number.

180164629 is a deficient number, since it is larger than the sum of its proper divisors (1).

180164629 is an equidigital number, since it uses as much as digits as its factorization.

180164629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 180164629 is about 13422.5418233656. The cubic root of 180164629 is about 564.7937002326.

It can be divided in two parts, 1801 and 64629, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 180164629 in words is "one hundred eighty million, one hundred sixty-four thousand, six hundred twenty-nine".