23101225 has 24 divisors (see below), whose sum is σ = 33087168. Its totient is φ = 15672000.

The previous prime is 23101219. The next prime is 23101279. The reversal of 23101225 is 52210132.

It is not a de Polignac number, because 23101225 - 2³ = 23101217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23101199 and 23101208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17022 + ... + 18328.

It is an arithmetic number, because the mean of its divisors is an integer number (1378632).

Almost surely, 2^23101225 is an apocalyptic number.

23101225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23101225 is a deficient number, since it is larger than the sum of its proper divisors (9985943).

23101225 is a wasteful number, since it uses less digits than its factorization.

23101225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 23101225 is about 4806.3733729289. The cubic root of 23101225 is about 284.8032909566.

Adding to 23101225 its reverse (52210132), we get a palindrome (75311357).

The spelling of 23101225 in words is "twenty-three million, one hundred one thousand, two hundred twenty-five".