1171267471 has 16 divisors (see below), whose sum is σ = 1290665376. Its totient is φ = 1054080000.

The previous prime is 1171267453. The next prime is 1171267481. The reversal of 1171267471 is 1747621711.

It is a cyclic number.

It is not a de Polignac number, because 1171267471 - 2¹¹ = 1171265423 is a prime.

It is a super-3 number, since 3×1171267471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1171267471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171267481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478611 + ... + 481051.

It is an arithmetic number, because the mean of its divisors is an integer number (80666586).

Almost surely, 2^1171267471 is an apocalyptic number.

1171267471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1171267471 is a deficient number, since it is larger than the sum of its proper divisors (119397905).

1171267471 is a wasteful number, since it uses less digits than its factorization.

1171267471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its digits is 16464, while the sum is 37.

The square root of 1171267471 is about 34223.7851647067. The cubic root of 1171267471 is about 1054.1086099817.

The spelling of 1171267471 in words is "one billion, one hundred seventy-one million, two hundred sixty-seven thousand, four hundred seventy-one".