23011147 has 8 divisors (see below), whose sum is σ = 24335360. Its totient is φ = 21698280.

The previous prime is 23011141. The next prime is 23011189. The reversal of 23011147 is 74111032.

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 23011147 - 2³ = 23011139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23011141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522 + ... + 6952.

It is an arithmetic number, because the mean of its divisors is an integer number (3041920).

Almost surely, 2^23011147 is an apocalyptic number.

23011147 is a deficient number, since it is larger than the sum of its proper divisors (1324213).

23011147 is a wasteful number, since it uses less digits than its factorization.

23011147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 23011147 is about 4796.9935376233. The cubic root of 23011147 is about 284.4326334422.

Adding to 23011147 its reverse (74111032), we get a palindrome (97122179).

The spelling of 23011147 in words is "twenty-three million, eleven thousand, one hundred forty-seven".