30444125 has 8 divisors (see below), whose sum is σ = 37994424. Its totient is φ = 24355200.

The previous prime is 30444119. The next prime is 30444131. The reversal of 30444125 is 52144403.

It is an interprime number because it is at equal distance from previous prime (30444119) and next prime (30444131).

It can be written as a sum of positive squares in 4 ways, for example, as 1907161 + 28536964 = 1381^2 + 5342^2 .

It is not a de Polignac number, because 30444125 - 2¹² = 30440029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30444125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121652 + ... + 121901.

It is an arithmetic number, because the mean of its divisors is an integer number (4749303).

Almost surely, 2^30444125 is an apocalyptic number.

It is an amenable number.

30444125 is a deficient number, since it is larger than the sum of its proper divisors (7550299).

30444125 is an equidigital number, since it uses as much as digits as its factorization.

30444125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243568 (or 243558 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 30444125 is about 5517.6195048227. The cubic root of 30444125 is about 312.2490785769.

Adding to 30444125 its reverse (52144403), we get a palindrome (82588528).

The spelling of 30444125 in words is "thirty million, four hundred forty-four thousand, one hundred twenty-five".