1945225 has 24 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 1393920.

The previous prime is 1945199. The next prime is 1945243. The reversal of 1945225 is 5225491.

It is not a de Polignac number, because 1945225 - 2⁹ = 1944713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945193 and 1945202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9676 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (111600).

2^1945225 is an apocalyptic number.

It is an amenable number.

1945225 is a deficient number, since it is larger than the sum of its proper divisors (733175).

1945225 is a wasteful number, since it uses less digits than its factorization.

1945225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 244 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1945225 is about 1394.7132321736. The cubic root of 1945225 is about 124.8312389268.

The spelling of 1945225 in words is "one million, nine hundred forty-five thousand, two hundred twenty-five".