1263373 has 2 divisors, whose sum is σ = 1263374. Its totient is φ = 1263372.

The previous prime is 1263347. The next prime is 1263377. The reversal of 1263373 is 3733621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258884 + 4489 = 1122^2 + 67^2 .

It is an emirp because it is prime and its reverse (3733621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1263373 - 2⁵ = 1263341 is a prime.

It is a super-2 number, since 2×1263373² = 3192222674258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631686 + 631687.

It is an arithmetic number, because the mean of its divisors is an integer number (631687).

2^1263373 is an apocalyptic number.

It is an amenable number.

1263373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263373 is an equidigital number, since it uses as much as digits as its factorization.

1263373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 25.

The square root of 1263373 is about 1123.9986654796. The cubic root of 1263373 is about 108.1045227240.

Adding to 1263373 its reverse (3733621), we get a palindrome (4996994).

The spelling of 1263373 in words is "one million, two hundred sixty-three thousand, three hundred seventy-three".