23105236 has 24 divisors (see below), whose sum is σ = 50412096. Its totient is φ = 9001920.

The previous prime is 23105213. The next prime is 23105249. The reversal of 23105236 is 63250132.

23105236 = T₂₂₃ + T₂₂₄ + ... + T₅₃₀.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 37201 + ... + 37816.

It is an arithmetic number, because the mean of its divisors is an integer number (2100504).

Almost surely, 2^23105236 is an apocalyptic number.

It is an amenable number.

23105236 is an abundant number, since it is smaller than the sum of its proper divisors (27306860).

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

23105236 is a wasteful number, since it uses less digits than its factorization.

23105236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75039 (or 75037 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 23105236 is about 4806.7906132887. The cubic root of 23105236 is about 284.8197731979.

Adding to 23105236 its reverse (63250132), we get a palindrome (86355368).

Subtracting 23105236 from its reverse (63250132), we obtain a square (40144896 = 6336²).

The spelling of 23105236 in words is "twenty-three million, one hundred five thousand, two hundred thirty-six".