1147471141 has 4 divisors (see below), whose sum is σ = 1175458284. Its totient is φ = 1119484000.

The previous prime is 1147471133. The next prime is 1147471187. The reversal of 1147471141 is 1411747411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1411747411 = 34679 ⋅40709.

It can be written as a sum of positive squares in 2 ways, for example, as 142898116 + 1004573025 = 11954^2 + 31695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147471141 - 2³ = 1147471133 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 (1147471111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993510 + ... + 13993591.

It is an arithmetic number, because the mean of its divisors is an integer number (293864571).

Almost surely, 2^1147471141 is an apocalyptic number.

It is an amenable number.

1147471141 is a deficient number, since it is larger than the sum of its proper divisors (27987143).

1147471141 is an equidigital number, since it uses as much as digits as its factorization.

1147471141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27987142.

The product of its digits is 3136, while the sum is 31.

The square root of 1147471141 is about 33874.3434032307. The cubic root of 1147471141 is about 1046.9210303913.

The spelling of 1147471141 in words is "one billion, one hundred forty-seven million, four hundred seventy-one thousand, one hundred forty-one".