1301243 has 2 divisors, whose sum is σ = 1301244. Its totient is φ = 1301242.

The previous prime is 1301239. The next prime is 1301249. The reversal of 1301243 is 3421031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1301243 - 2² = 1301239 is a prime.

It is not a weakly prime, because it can be changed into another prime (1301249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650621 + 650622.

It is an arithmetic number, because the mean of its divisors is an integer number (650622).

2^1301243 is an apocalyptic number.

1301243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301243 is an equidigital number, since it uses as much as digits as its factorization.

1301243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1301243 is about 1140.7203864225. The cubic root of 1301243 is about 109.1740618756.

Adding to 1301243 its reverse (3421031), we get a palindrome (4722274).

The spelling of 1301243 in words is "one million, three hundred one thousand, two hundred forty-three".