23166047 has 4 divisors (see below), whose sum is σ = 23445240. Its totient is φ = 22886856.

The previous prime is 23166029. The next prime is 23166061. The reversal of 23166047 is 74066132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23166047 - 2¹⁴ = 23149663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23166007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139472 + ... + 139637.

It is an arithmetic number, because the mean of its divisors is an integer number (5861310).

Almost surely, 2^23166047 is an apocalyptic number.

23166047 is a deficient number, since it is larger than the sum of its proper divisors (279193).

23166047 is an equidigital number, since it uses as much as digits as its factorization.

23166047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279192.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23166047 is about 4813.1119870620. Note that the first 3 decimals coincide. The cubic root of 23166047 is about 285.0694280429.

The spelling of 23166047 in words is "twenty-three million, one hundred sixty-six thousand, forty-seven".