182166493 has 2 divisors, whose sum is σ = 182166494. Its totient is φ = 182166492.

The previous prime is 182166469. The next prime is 182166497. The reversal of 182166493 is 394661281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181360089 + 806404 = 13467^2 + 898^2 .

It is a cyclic number.

It is not a de Polignac number, because 182166493 - 2¹⁷ = 182035421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (182166497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91083246 + 91083247.

It is an arithmetic number, because the mean of its divisors is an integer number (91083247).

Almost surely, 2^182166493 is an apocalyptic number.

It is an amenable number.

182166493 is a deficient number, since it is larger than the sum of its proper divisors (1).

182166493 is an equidigital number, since it uses as much as digits as its factorization.

182166493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 182166493 is about 13496.9067937806. The cubic root of 182166493 is about 566.8778647979.

The spelling of 182166493 in words is "one hundred eighty-two million, one hundred sixty-six thousand, four hundred ninety-three".