1293130247 has 4 divisors (see below), whose sum is σ = 1297732416. Its totient is φ = 1288528080.

The previous prime is 1293130229. The next prime is 1293130273. The reversal of 1293130247 is 7420313921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1293130247 - 2⁸ = 1293129991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293130297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2300663 + ... + 2301224.

It is an arithmetic number, because the mean of its divisors is an integer number (324433104).

Almost surely, 2^1293130247 is an apocalyptic number.

1293130247 is a deficient number, since it is larger than the sum of its proper divisors (4602169).

1293130247 is an equidigital number, since it uses as much as digits as its factorization.

1293130247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602168.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1293130247 is about 35960.1202306110. The cubic root of 1293130247 is about 1089.4670252977.

The spelling of 1293130247 in words is "one billion, two hundred ninety-three million, one hundred thirty thousand, two hundred forty-seven".