1147071347 has 4 divisors (see below), whose sum is σ = 1147152096. Its totient is φ = 1146990600.

The previous prime is 1147071313. The next prime is 1147071353. The reversal of 1147071347 is 7431707411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7431707411 = 163 ⋅45593297.

It is a cyclic number.

It is not a de Polignac number, because 1147071347 - 2⁶ = 1147071283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147071647) 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, 12779 + ... + 49572.

It is an arithmetic number, because the mean of its divisors is an integer number (286788024).

Almost surely, 2^1147071347 is an apocalyptic number.

1147071347 is a deficient number, since it is larger than the sum of its proper divisors (80749).

1147071347 is an equidigital number, since it uses as much as digits as its factorization.

1147071347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80748.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 1147071347 is about 33868.4417563017. The cubic root of 1147071347 is about 1046.7994292603.

Adding to 1147071347 its reverse (7431707411), we get a palindrome (8578778758).

The spelling of 1147071347 in words is "one billion, one hundred forty-seven million, seventy-one thousand, three hundred forty-seven".