23112145 has 8 divisors (see below), whose sum is σ = 31696704. Its totient is φ = 15848304.

The previous prime is 23112137. The next prime is 23112157. The reversal of 23112145 is 54121132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23112145 - 2³ = 23112137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 330139 + ... + 330208.

It is an arithmetic number, because the mean of its divisors is an integer number (3962088).

Almost surely, 2^23112145 is an apocalyptic number.

It is an amenable number.

23112145 is a deficient number, since it is larger than the sum of its proper divisors (8584559).

23112145 is an equidigital number, since it uses as much as digits as its factorization.

23112145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660359.

The product of its digits is 240, while the sum is 19.

The square root of 23112145 is about 4807.5092303604. The cubic root of 23112145 is about 284.8481596021.

Adding to 23112145 its reverse (54121132), we get a palindrome (77233277).

The spelling of 23112145 in words is "twenty-three million, one hundred twelve thousand, one hundred forty-five".