23143215 has 8 divisors (see below), whose sum is σ = 37029168. Its totient is φ = 12343040.

The previous prime is 23143199. The next prime is 23143259. The reversal of 23143215 is 51234132.

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

It is not a de Polignac number, because 23143215 - 2⁴ = 23143199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23143191 and 23143200.

It is a congruent 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, 771426 + ... + 771455.

It is an arithmetic number, because the mean of its divisors is an integer number (4628646).

Almost surely, 2^23143215 is an apocalyptic number.

23143215 is a deficient number, since it is larger than the sum of its proper divisors (13885953).

23143215 is a wasteful number, since it uses less digits than its factorization.

23143215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542889.

The product of its digits is 720, while the sum is 21.

The square root of 23143215 is about 4810.7395481360. The cubic root of 23143215 is about 284.9757443192.

Adding to 23143215 its reverse (51234132), we get a palindrome (74377347).

The spelling of 23143215 in words is "twenty-three million, one hundred forty-three thousand, two hundred fifteen".