123133025 has 6 divisors (see below), whose sum is σ = 152684982. Its totient is φ = 98506400.

The previous prime is 123133019. The next prime is 123133067. The reversal of 123133025 is 520331321.

It can be written as a sum of positive squares in 3 ways, for example, as 2155024 + 120978001 = 1468^2 + 10999^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123133025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123132988 and 123133006.

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, 2462636 + ... + 2462685.

It is an arithmetic number, because the mean of its divisors is an integer number (25447497).

Almost surely, 2^123133025 is an apocalyptic number.

It is an amenable number.

123133025 is a deficient number, since it is larger than the sum of its proper divisors (29551957).

123133025 is an equidigital number, since it uses as much as digits as its factorization.

123133025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925331 (or 4925326 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 123133025 is about 11096.5321159360. The cubic root of 123133025 is about 497.4982029008.

Adding to 123133025 its reverse (520331321), we get a palindrome (643464346).

The spelling of 123133025 in words is "one hundred twenty-three million, one hundred thirty-three thousand, twenty-five".