182166469 has 2 divisors, whose sum is σ = 182166470. Its totient is φ = 182166468.

The previous prime is 182166443. The next prime is 182166493. The reversal of 182166469 is 964661281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177902244 + 4264225 = 13338^2 + 2065^2 .

It is an emirp because it is prime and its reverse (964661281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 182166469 - 2¹⁵ = 182133701 is a prime.

It is a super-2 number, since 2×182166469² = 66369244855855922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182166499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91083234 + 91083235.

It is an arithmetic number, because the mean of its divisors is an integer number (91083235).

Almost surely, 2^182166469 is an apocalyptic number.

It is an amenable number.

182166469 is a deficient number, since it is larger than the sum of its proper divisors (1).

182166469 is an equidigital number, since it uses as much as digits as its factorization.

182166469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 182166469 is about 13496.9059046879. The cubic root of 182166469 is about 566.8778399029.

The spelling of 182166469 in words is "one hundred eighty-two million, one hundred sixty-six thousand, four hundred sixty-nine".