1320273 has 16 divisors (see below), whose sum is σ = 1978560. Its totient is φ = 870048.

The previous prime is 1320251. The next prime is 1320287. The reversal of 1320273 is 3720231.

It is not a de Polignac number, because 1320273 - 2¹² = 1316177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661 + ... + 3117.

It is an arithmetic number, because the mean of its divisors is an integer number (123660).

2^1320273 is an apocalyptic number.

It is an amenable number.

1320273 is a deficient number, since it is larger than the sum of its proper divisors (658287).

1320273 is a wasteful number, since it uses less digits than its factorization.

1320273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 1320273 is about 1149.0313311655. The cubic root of 1320273 is about 109.7036929122.

The spelling of 1320273 in words is "one million, three hundred twenty thousand, two hundred seventy-three".