23145212 has 12 divisors (see below), whose sum is σ = 40667256. Its totient is φ = 11526000.

The previous prime is 23145209. The next prime is 23145271. The reversal of 23145212 is 21254132.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 10523 + ... + 12530.

It is an arithmetic number, because the mean of its divisors is an integer number (3388938).

Almost surely, 2^23145212 is an apocalyptic number.

It is an amenable number.

23145212 is a deficient number, since it is larger than the sum of its proper divisors (17522044).

23145212 is a wasteful number, since it uses less digits than its factorization.

23145212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23308 (or 23306 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 23145212 is about 4810.9471001041. The cubic root of 23145212 is about 284.9839408208.

Adding to 23145212 its reverse (21254132), we get a palindrome (44399344).

The spelling of 23145212 in words is "twenty-three million, one hundred forty-five thousand, two hundred twelve".