180010309 has 2 divisors, whose sum is σ = 180010310. Its totient is φ = 180010308.

The previous prime is 180010301. The next prime is 180010333. The reversal of 180010309 is 903010081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94965025 + 85045284 = 9745^2 + 9222^2 .

It is a cyclic number.

It is not a de Polignac number, because 180010309 - 2³ = 180010301 is a prime.

It is a super-2 number, since 2×180010309² = 64807422692550962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 180010309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180010301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90005154 + 90005155.

It is an arithmetic number, because the mean of its divisors is an integer number (90005155).

Almost surely, 2^180010309 is an apocalyptic number.

It is an amenable number.

180010309 is a deficient number, since it is larger than the sum of its proper divisors (1).

180010309 is an equidigital number, since it uses as much as digits as its factorization.

180010309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 180010309 is about 13416.7920532443. The cubic root of 180010309 is about 564.6323961678.

The spelling of 180010309 in words is "one hundred eighty million, ten thousand, three hundred nine".