23154856 has 16 divisors (see below), whose sum is σ = 43846740. Its totient is φ = 11462400.

The previous prime is 23154853. The next prime is 23154869. The reversal of 23154856 is 65845132.

It can be written as a sum of positive squares in 2 ways, for example, as 22752900 + 401956 = 4770^2 + 634^2 .

It is a super-2 number, since 2×23154856² = 1072294712761472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23154851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13521 + ... + 15136.

Almost surely, 2^23154856 is an apocalyptic number.

It is an amenable number.

23154856 is a deficient number, since it is larger than the sum of its proper divisors (20691884).

23154856 is a wasteful number, since it uses less digits than its factorization.

23154856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28764 (or 28760 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 23154856 is about 4811.9492931659. The cubic root of 23154856 is about 285.0235170909.

Adding to 23154856 its reverse (65845132), we get a palindrome (88999988).

The spelling of 23154856 in words is "twenty-three million, one hundred fifty-four thousand, eight hundred fifty-six".