30123425 has 6 divisors (see below), whose sum is σ = 37353078. Its totient is φ = 24098720.

The previous prime is 30123409. The next prime is 30123437. The reversal of 30123425 is 52432103.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9265936 + 20857489 = 3044^2 + 4567^2 .

It is not a de Polignac number, because 30123425 - 2⁴ = 30123409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30123397 and 30123406.

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, 602444 + ... + 602493.

It is an arithmetic number, because the mean of its divisors is an integer number (6225513).

Almost surely, 2^30123425 is an apocalyptic number.

It is an amenable number.

30123425 is a deficient number, since it is larger than the sum of its proper divisors (7229653).

30123425 is a wasteful number, since it uses less digits than its factorization.

30123425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204947 (or 1204942 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30123425 is about 5488.4811195813. The cubic root of 30123425 is about 311.1487899613.

Adding to 30123425 its reverse (52432103), we get a palindrome (82555528).

The spelling of 30123425 in words is "thirty million, one hundred twenty-three thousand, four hundred twenty-five".