123013225 has 6 divisors (see below), whose sum is σ = 152536430. Its totient is φ = 98410560.

The previous prime is 123013217. The next prime is 123013237. The reversal of 123013225 is 522310321.

It can be written as a sum of positive squares in 3 ways, for example, as 2277081 + 120736144 = 1509^2 + 10988^2 .

It is not a de Polignac number, because 123013225 - 2³ = 123013217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2460240 + ... + 2460289.

Almost surely, 2^123013225 is an apocalyptic number.

It is an amenable number.

123013225 is a deficient number, since it is larger than the sum of its proper divisors (29523205).

123013225 is an equidigital number, since it uses as much as digits as its factorization.

123013225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920539 (or 4920534 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 123013225 is about 11091.1327194295. The cubic root of 123013225 is about 497.3368066544.

Adding to 123013225 its reverse (522310321), we get a palindrome (645323546).

The spelling of 123013225 in words is "one hundred twenty-three million, thirteen thousand, two hundred twenty-five".