23154500 has 24 divisors (see below), whose sum is σ = 50570520. Its totient is φ = 9261600.

The previous prime is 23154497. The next prime is 23154529. The reversal of 23154500 is 545132.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 23116864 = 194^2 + 4808^2 .

It is a super-2 number, since 2×23154500² = 1072261740500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 22655 + ... + 23654.

It is an arithmetic number, because the mean of its divisors is an integer number (2107105).

Almost surely, 2^23154500 is an apocalyptic number.

23154500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23154500 is an abundant number, since it is smaller than the sum of its proper divisors (27416020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23154500 is a wasteful number, since it uses less digits than its factorization.

23154500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46328 (or 46316 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 23154500 is about 4811.9123017777. The cubic root of 23154500 is about 285.0220563621.

Adding to 23154500 its reverse (545132), we get a palindrome (23699632).

The spelling of 23154500 in words is "twenty-three million, one hundred fifty-four thousand, five hundred".