13166477 has 2 divisors, whose sum is σ = 13166478. Its totient is φ = 13166476.

The previous prime is 13166467. The next prime is 13166479. The reversal of 13166477 is 77466131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12208036 + 958441 = 3494^2 + 979^2 .

It is an emirp because it is prime and its reverse (77466131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13166477 - 2¹² = 13162381 is a prime.

It is a super-2 number, since 2×13166477² = 346712233183058, which contains 22 as substring.

Together with 13166479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13166479) 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, 6583238 + 6583239.

It is an arithmetic number, because the mean of its divisors is an integer number (6583239).

Almost surely, 2^13166477 is an apocalyptic number.

It is an amenable number.

13166477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166477 is an equidigital number, since it uses as much as digits as its factorization.

13166477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 13166477 is about 3628.5640410498. The cubic root of 13166477 is about 236.1329149302.

The spelling of 13166477 in words is "thirteen million, one hundred sixty-six thousand, four hundred seventy-seven".