23169481 has 2 divisors, whose sum is σ = 23169482. Its totient is φ = 23169480.

The previous prime is 23169479. The next prime is 23169491. The reversal of 23169481 is 18496132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19713600 + 3455881 = 4440^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 23169481 - 2¹ = 23169479 is a prime.

It is a super-2 number, since 2×23169481² = 1073649699618722, which contains 22 as substring.

Together with 23169479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23169491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11584740 + 11584741.

It is an arithmetic number, because the mean of its divisors is an integer number (11584741).

Almost surely, 2^23169481 is an apocalyptic number.

It is an amenable number.

23169481 is a deficient number, since it is larger than the sum of its proper divisors (1).

23169481 is an equidigital number, since it uses as much as digits as its factorization.

23169481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 23169481 is about 4813.4687076993. The cubic root of 23169481 is about 285.0835130247.

The spelling of 23169481 in words is "twenty-three million, one hundred sixty-nine thousand, four hundred eighty-one".