1263319 has 2 divisors, whose sum is σ = 1263320. Its totient is φ = 1263318.

The previous prime is 1263307. The next prime is 1263323. The reversal of 1263319 is 9133621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1263319 - 2⁷ = 1263191 is a prime.

It is a super-2 number, since 2×1263319² = 3191949791522, which contains 22 as substring.

1263319 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1263293 and 1263302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631659 + 631660.

It is an arithmetic number, because the mean of its divisors is an integer number (631660).

2^1263319 is an apocalyptic number.

1263319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263319 is an equidigital number, since it uses as much as digits as its factorization.

1263319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 25.

The square root of 1263319 is about 1123.9746438421. The cubic root of 1263319 is about 108.1029824749.

The spelling of 1263319 in words is "one million, two hundred sixty-three thousand, three hundred nineteen".