23147225 has 12 divisors (see below), whose sum is σ = 30213840. Its totient is φ = 17542800.

The previous prime is 23147221. The next prime is 23147231. The reversal of 23147225 is 52274132.

It is not a de Polignac number, because 23147225 - 2² = 23147221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23147194 and 23147203.

It is not an unprimeable number, because it can be changed into a prime (23147221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23891 + ... + 24840.

It is an arithmetic number, because the mean of its divisors is an integer number (2517820).

Almost surely, 2^23147225 is an apocalyptic number.

23147225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23147225 is a deficient number, since it is larger than the sum of its proper divisors (7066615).

23147225 is a wasteful number, since it uses less digits than its factorization.

23147225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48760 (or 48755 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 23147225 is about 4811.1563059206. The cubic root of 23147225 is about 284.9922025157.

The spelling of 23147225 in words is "twenty-three million, one hundred forty-seven thousand, two hundred twenty-five".