1347742117 has 4 divisors (see below), whose sum is σ = 1351037740. Its totient is φ = 1344446496.

The previous prime is 1347742111. The next prime is 1347742129. The reversal of 1347742117 is 7112477431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7112477431 = 293 ⋅24274667.

It can be written as a sum of positive squares in 2 ways, for example, as 633730276 + 714011841 = 25174^2 + 26721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1347742117 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 (1347742111) 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, 1647198 + ... + 1648015.

It is an arithmetic number, because the mean of its divisors is an integer number (337759435).

Almost surely, 2^1347742117 is an apocalyptic number.

It is an amenable number.

1347742117 is a deficient number, since it is larger than the sum of its proper divisors (3295623).

1347742117 is an equidigital number, since it uses as much as digits as its factorization.

1347742117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295622.

The product of its digits is 32928, while the sum is 37.

The square root of 1347742117 is about 36711.6073878549. The cubic root of 1347742117 is about 1104.5929493129.

The spelling of 1347742117 in words is "one billion, three hundred forty-seven million, seven hundred forty-two thousand, one hundred seventeen".