23015213 has 8 divisors (see below), whose sum is σ = 26090400. Its totient is φ = 20126448.

The previous prime is 23015207. The next prime is 23015233. The reversal of 23015213 is 31251032.

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 23015213 - 2¹² = 23011117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23015191 and 23015200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015233) 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, 46343 + ... + 46836.

It is an arithmetic number, because the mean of its divisors is an integer number (3261300).

Almost surely, 2^23015213 is an apocalyptic number.

It is an amenable number.

23015213 is a deficient number, since it is larger than the sum of its proper divisors (3075187).

23015213 is a wasteful number, since it uses less digits than its factorization.

23015213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93211.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23015213 is about 4797.4173260203. The cubic root of 23015213 is about 284.4493852506.

Adding to 23015213 its reverse (31251032), we get a palindrome (54266245).

The spelling of 23015213 in words is "twenty-three million, fifteen thousand, two hundred thirteen".