123243425 has 6 divisors (see below), whose sum is σ = 152821878. Its totient is φ = 98594720.

The previous prime is 123243409. The next prime is 123243473. The reversal of 123243425 is 524342321.

It can be written as a sum of positive squares in 3 ways, for example, as 40360609 + 82882816 = 6353^2 + 9104^2 .

It is not a de Polignac number, because 123243425 - 2⁴ = 123243409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123243394 and 123243403.

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 5 ways as a sum of consecutive naturals, for example, 2464844 + ... + 2464893.

It is an arithmetic number, because the mean of its divisors is an integer number (25470313).

Almost surely, 2^123243425 is an apocalyptic number.

It is an amenable number.

123243425 is a deficient number, since it is larger than the sum of its proper divisors (29578453).

123243425 is an equidigital number, since it uses as much as digits as its factorization.

123243425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929747 (or 4929742 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 123243425 is about 11101.5055285308. The cubic root of 123243425 is about 497.6468426749.

Adding to 123243425 its reverse (524342321), we get a palindrome (647585746).

The spelling of 123243425 in words is "one hundred twenty-three million, two hundred forty-three thousand, four hundred twenty-five".