123355225 has 24 divisors (see below), whose sum is σ = 179546048. Its totient is φ = 82296000.

The previous prime is 123355223. The next prime is 123355229. The reversal of 123355225 is 522553321.

123355225 = T₁₄₃₅ + T₁₄₃₆ + ... + T₁₅₄₅.

It is not a de Polignac number, because 123355225 - 2¹ = 123355223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123355193 and 123355202.

It is not an unprimeable number, because it can be changed into a prime (123355223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3051 + ... + 16000.

Almost surely, 2^123355225 is an apocalyptic number.

It is an amenable number.

123355225 is a deficient number, since it is larger than the sum of its proper divisors (56190823).

123355225 is a wasteful number, since it uses less digits than its factorization.

123355225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105 (or 19100 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 123355225 is about 11106.5397401711. The cubic root of 123355225 is about 497.7972769390.

The spelling of 123355225 in words is "one hundred twenty-three million, three hundred fifty-five thousand, two hundred twenty-five".