1371263 has 2 divisors, whose sum is σ = 1371264. Its totient is φ = 1371262.

The previous prime is 1371259. The next prime is 1371301. The reversal of 1371263 is 3621731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1371263 - 2² = 1371259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1371563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685631 + 685632.

It is an arithmetic number, because the mean of its divisors is an integer number (685632).

2^1371263 is an apocalyptic number.

1371263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371263 is an equidigital number, since it uses as much as digits as its factorization.

1371263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 1371263 is about 1171.0093936429. The cubic root of 1371263 is about 111.0981735677.

Adding to 1371263 its reverse (3621731), we get a palindrome (4992994).

The spelling of 1371263 in words is "one million, three hundred seventy-one thousand, two hundred sixty-three".