1183378543 has 8 divisors (see below), whose sum is σ = 1241656416. Its totient is φ = 1125669600.

The previous prime is 1183378481. The next prime is 1183378583. The reversal of 1183378543 is 3458733811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1183378543 - 2¹³ = 1183370351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1183378543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1183378583) 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, 137968 + ... + 146293.

It is an arithmetic number, because the mean of its divisors is an integer number (155207052).

Almost surely, 2^1183378543 is an apocalyptic number.

1183378543 is a deficient number, since it is larger than the sum of its proper divisors (58277873).

1183378543 is a wasteful number, since it uses less digits than its factorization.

1183378543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284465.

The product of its digits is 241920, while the sum is 43.

The square root of 1183378543 is about 34400.2695192930. The cubic root of 1183378543 is about 1057.7293696997.

The spelling of 1183378543 in words is "one billion, one hundred eighty-three million, three hundred seventy-eight thousand, five hundred forty-three".