1147768543 has 4 divisors (see below), whose sum is σ = 1147929880. Its totient is φ = 1147607208.

The previous prime is 1147768541. The next prime is 1147768547. The reversal of 1147768543 is 3458677411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3458677411 = 7 ⋅494096773.

It is a cyclic number.

It is not a de Polignac number, because 1147768543 - 2¹ = 1147768541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1147768493 and 1147768502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147768541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69480 + ... + 84397.

It is an arithmetic number, because the mean of its divisors is an integer number (286982470).

Almost surely, 2^1147768543 is an apocalyptic number.

1147768543 is a deficient number, since it is larger than the sum of its proper divisors (161337).

1147768543 is an equidigital number, since it uses as much as digits as its factorization.

1147768543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161336.

The product of its digits is 564480, while the sum is 46.

The square root of 1147768543 is about 33878.7329013350. The cubic root of 1147768543 is about 1047.0114697066.

The spelling of 1147768543 in words is "one billion, one hundred forty-seven million, seven hundred sixty-eight thousand, five hundred forty-three".