1320501 has 24 divisors (see below), whose sum is σ = 2208864. Its totient is φ = 695520.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320501 is 1050231.

It is not a de Polignac number, because 1320501 - 2⁶ = 1320437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320541) 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, 1566 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (92036).

2^1320501 is an apocalyptic number.

It is an amenable number.

1320501 is a deficient number, since it is larger than the sum of its proper divisors (888363).

1320501 is a wasteful number, since it uses less digits than its factorization.

1320501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1320501 is about 1149.1305408873. The cubic root of 1320501 is about 109.7100075159.

Adding to 1320501 its reverse (1050231), we get a palindrome (2370732).

The spelling of 1320501 in words is "one million, three hundred twenty thousand, five hundred one".