1321475 has 6 divisors (see below), whose sum is σ = 1638660. Its totient is φ = 1057160.

The previous prime is 1321459. The next prime is 1321477. The reversal of 1321475 is 5741231.

It is not a de Polignac number, because 1321475 - 2⁴ = 1321459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321475.

It is not an unprimeable number, because it can be changed into a prime (1321477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26405 + ... + 26454.

It is an arithmetic number, because the mean of its divisors is an integer number (273110).

2^1321475 is an apocalyptic number.

1321475 is a deficient number, since it is larger than the sum of its proper divisors (317185).

1321475 is an equidigital number, since it uses as much as digits as its factorization.

1321475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52869 (or 52864 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 1321475 is about 1149.5542614422. The cubic root of 1321475 is about 109.7369748778.

The spelling of 1321475 in words is "one million, three hundred twenty-one thousand, four hundred seventy-five".