378200125 has 16 divisors (see below), whose sum is σ = 484756272. Its totient is φ = 294379200.

The previous prime is 378200087. The next prime is 378200129. The reversal of 378200125 is 521002873.

It can be written as a sum of positive squares in 8 ways, for example, as 18301284 + 359898841 = 4278^2 + 18971^2 .

It is not a de Polignac number, because 378200125 - 2²¹ = 376102973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378200093 and 378200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378200129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36262 + ... + 45511.

It is an arithmetic number, because the mean of its divisors is an integer number (30297267).

Almost surely, 2^378200125 is an apocalyptic number.

It is an amenable number.

378200125 is a deficient number, since it is larger than the sum of its proper divisors (106556147).

378200125 is an equidigital number, since it uses as much as digits as its factorization.

378200125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81825 (or 81815 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 378200125 is about 19447.3680738551. The cubic root of 378200125 is about 723.1702571958.

Adding to 378200125 its reverse (521002873), we get a palindrome (899202998).

The spelling of 378200125 in words is "three hundred seventy-eight million, two hundred thousand, one hundred twenty-five".