1293731713 has 4 divisors (see below), whose sum is σ = 1293868080. Its totient is φ = 1293595348.

The previous prime is 1293731701. The next prime is 1293731723. The reversal of 1293731713 is 3171373921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1293731713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1293731723) 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, 52795 + ... + 73312.

It is an arithmetic number, because the mean of its divisors is an integer number (323467020).

Almost surely, 2^1293731713 is an apocalyptic number.

It is an amenable number.

1293731713 is a deficient number, since it is larger than the sum of its proper divisors (136367).

1293731713 is a wasteful number, since it uses less digits than its factorization.

1293731713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136366.

The product of its digits is 23814, while the sum is 37.

The square root of 1293731713 is about 35968.4822170744. The cubic root of 1293731713 is about 1089.6359115607.

The spelling of 1293731713 in words is "one billion, two hundred ninety-three million, seven hundred thirty-one thousand, seven hundred thirteen".