23170146 has 16 divisors (see below), whose sum is σ = 46550784. Its totient is φ = 7688304.

The previous prime is 23170109. The next prime is 23170151. The reversal of 23170146 is 64107132.

It is a super-2 number, since 2×23170146² = 1073711331322632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7321 + ... + 9996.

It is an arithmetic number, because the mean of its divisors is an integer number (2909424).

Almost surely, 2^23170146 is an apocalyptic number.

23170146 is an abundant number, since it is smaller than the sum of its proper divisors (23380638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23170146 is a wasteful number, since it uses less digits than its factorization.

23170146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17545.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 23170146 is about 4813.5377842082. The cubic root of 23170146 is about 285.0862404447.

Adding to 23170146 its reverse (64107132), we get a palindrome (87277278).

The spelling of 23170146 in words is "twenty-three million, one hundred seventy thousand, one hundred forty-six".