1320293 has 4 divisors (see below), whose sum is σ = 1421868. Its totient is φ = 1218720.

The previous prime is 1320287. The next prime is 1320301. The reversal of 1320293 is 3920231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103684 + 1216609 = 322^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320293 - 2⁸ = 1320037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50768 + ... + 50793.

It is an arithmetic number, because the mean of its divisors is an integer number (355467).

2^1320293 is an apocalyptic number.

1320293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1320293 is a deficient number, since it is larger than the sum of its proper divisors (101575).

1320293 is a wasteful number, since it uses less digits than its factorization.

1320293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101574.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1320293 is about 1149.0400341154. The cubic root of 1320293 is about 109.7042468539.

It can be divided in two parts, 1320 and 293, that multiplied together give a triangular number (386760 = T₈₇₉).

The spelling of 1320293 in words is "one million, three hundred twenty thousand, two hundred ninety-three".