23151804 has 96 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 6594048.

The previous prime is 23151803. The next prime is 23151809. The reversal of 23151804 is 40815132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151803) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 216319 + ... + 216425.

It is an arithmetic number, because the mean of its divisors is an integer number (652680).

Almost surely, 2^23151804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23151804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31328640).

23151804 is an abundant number, since it is smaller than the sum of its proper divisors (39505476).

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

23151804 is a wasteful number, since it uses less digits than its factorization.

23151804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 23151804 is about 4811.6321555165. The cubic root of 23151804 is about 285.0109937280.

Adding to 23151804 its reverse (40815132), we get a palindrome (63966936).

The spelling of 23151804 in words is "twenty-three million, one hundred fifty-one thousand, eight hundred four".