1293497047 has 2 divisors, whose sum is σ = 1293497048. Its totient is φ = 1293497046.

The previous prime is 1293497033. The next prime is 1293497053. The reversal of 1293497047 is 7407943921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1293497047 is a prime.

It is a super-2 number, since 2×1293497047² = 3346269221195440418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1293496988 and 1293497006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1293497017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646748523 + 646748524.

It is an arithmetic number, because the mean of its divisors is an integer number (646748524).

Almost surely, 2^1293497047 is an apocalyptic number.

1293497047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293497047 is an equidigital number, since it uses as much as digits as its factorization.

1293497047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1293497047 is about 35965.2199631811. The cubic root of 1293497047 is about 1089.5700256793.

The spelling of 1293497047 in words is "one billion, two hundred ninety-three million, four hundred ninety-seven thousand, forty-seven".