1147873271 has 2 divisors, whose sum is σ = 1147873272. Its totient is φ = 1147873270.

The previous prime is 1147873267. The next prime is 1147873289. The reversal of 1147873271 is 1723787411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1147873271 - 2² = 1147873267 is a prime.

It is a super-2 number, since 2×1147873271² = 2635226092552478882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147873291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573936635 + 573936636.

It is an arithmetic number, because the mean of its divisors is an integer number (573936636).

Almost surely, 2^1147873271 is an apocalyptic number.

1147873271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147873271 is an equidigital number, since it uses as much as digits as its factorization.

1147873271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 41.

The square root of 1147873271 is about 33880.2784964941. The cubic root of 1147873271 is about 1047.0433135492.

The spelling of 1147873271 in words is "one billion, one hundred forty-seven million, eight hundred seventy-three thousand, two hundred seventy-one".