1145247471 has 8 divisors (see below), whose sum is σ = 1696662960. Its totient is φ = 763498296.

The previous prime is 1145247469. The next prime is 1145247473. The reversal of 1145247471 is 1747425411.

1145247471 is a `hidden beast` number, since 1 + 145 + 2 + 47 + 471 = 666.

It is an interprime number because it is at equal distance from previous prime (1145247469) and next prime (1145247473).

It is not a de Polignac number, because 1145247471 - 2¹ = 1145247469 is a prime.

It is a super-3 number, since 3×1145247471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145247473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21208260 + ... + 21208313.

It is an arithmetic number, because the mean of its divisors is an integer number (212082870).

Almost surely, 2^1145247471 is an apocalyptic number.

1145247471 is a deficient number, since it is larger than the sum of its proper divisors (551415489).

1145247471 is an equidigital number, since it uses as much as digits as its factorization.

1145247471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42416582 (or 42416576 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 1145247471 is about 33841.5051526967. The cubic root of 1145247471 is about 1046.2443213422.

The spelling of 1145247471 in words is "one billion, one hundred forty-five million, two hundred forty-seven thousand, four hundred seventy-one".