1293965263 has 2 divisors, whose sum is σ = 1293965264. Its totient is φ = 1293965262.

The previous prime is 1293965261. The next prime is 1293965287. The reversal of 1293965263 is 3625693921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1293965263 - 2¹ = 1293965261 is a prime.

It is a super-2 number, since 2×1293965263² = 3348692203701318338, which contains 22 as substring.

Together with 1293965261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1293965261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646982631 + 646982632.

It is an arithmetic number, because the mean of its divisors is an integer number (646982632).

Almost surely, 2^1293965263 is an apocalyptic number.

1293965263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293965263 is an equidigital number, since it uses as much as digits as its factorization.

1293965263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 46.

The square root of 1293965263 is about 35971.7286629375. The cubic root of 1293965263 is about 1089.7014761989.

The spelling of 1293965263 in words is "one billion, two hundred ninety-three million, nine hundred sixty-five thousand, two hundred sixty-three".