1325215 has 8 divisors (see below), whose sum is σ = 1613088. Its totient is φ = 1044960.

The previous prime is 1325197. The next prime is 1325227. The reversal of 1325215 is 5125231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1325215 - 2⁵ = 1325183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325192 and 1325201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1512 + ... + 2221.

It is an arithmetic number, because the mean of its divisors is an integer number (201636).

2^1325215 is an apocalyptic number.

1325215 is a deficient number, since it is larger than the sum of its proper divisors (287873).

1325215 is an equidigital number, since it uses as much as digits as its factorization.

1325215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809.

The product of its digits is 300, while the sum is 19.

The square root of 1325215 is about 1151.1798295662. The cubic root of 1325215 is about 109.8404021620.

It can be divided in two parts, 1325 and 215, that added together give a triangular number (1540 = T₅₅).

The spelling of 1325215 in words is "one million, three hundred twenty-five thousand, two hundred fifteen".