1945625 has 20 divisors (see below), whose sum is σ = 2661648. Its totient is φ = 1410000.

The previous prime is 1945609. The next prime is 1945627. The reversal of 1945625 is 5265491.

It is a happy number.

It is not a de Polignac number, because 1945625 - 2⁴ = 1945609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945591 and 1945600.

It is not an unprimeable number, because it can be changed into a prime (1945627) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6734 + ... + 7016.

2^1945625 is an apocalyptic number.

It is an amenable number.

1945625 is a deficient number, since it is larger than the sum of its proper divisors (716023).

1945625 is an equidigital number, since it uses as much as digits as its factorization.

1945625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 299 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 1945625 is about 1394.8566234563. The cubic root of 1945625 is about 124.8397947620.

The spelling of 1945625 in words is "one million, nine hundred forty-five thousand, six hundred twenty-five".