1320025 has 24 divisors (see below), whose sum is σ = 1974080. Its totient is φ = 855360.

The previous prime is 1320023. The next prime is 1320031. The reversal of 1320025 is 5200231.

It is not a de Polignac number, because 1320025 - 2¹ = 1320023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1319987 and 1320014.

It is not an unprimeable number, because it can be changed into a prime (1320023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3127 + ... + 3523.

2^1320025 is an apocalyptic number.

It is an amenable number.

1320025 is a deficient number, since it is larger than the sum of its proper divisors (654055).

1320025 is a wasteful number, since it uses less digits than its factorization.

1320025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1320025 is about 1148.9234091096. The cubic root of 1320025 is about 109.6968235704.

Adding to 1320025 its reverse (5200231), we get a palindrome (6520256).

It can be divided in two parts, 13200 and 25, that added together give a square (13225 = 115²).

The spelling of 1320025 in words is "one million, three hundred twenty thousand, twenty-five".