1139562543 has 8 divisors (see below), whose sum is σ = 1736476288. Its totient is φ = 651178584.

The previous prime is 1139562539. The next prime is 1139562553. The reversal of 1139562543 is 3452659311.

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

It is not a de Polignac number, because 1139562543 - 2² = 1139562539 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 (1139562553) 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, 27132421 + ... + 27132462.

It is an arithmetic number, because the mean of its divisors is an integer number (217059536).

Almost surely, 2^1139562543 is an apocalyptic number.

1139562543 is a deficient number, since it is larger than the sum of its proper divisors (596913745).

1139562543 is an equidigital number, since it uses as much as digits as its factorization.

1139562543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54264893.

The product of its digits is 97200, while the sum is 39.

The square root of 1139562543 is about 33757.4072315988. The cubic root of 1139562543 is about 1044.5102878561.

The spelling of 1139562543 in words is "one billion, one hundred thirty-nine million, five hundred sixty-two thousand, five hundred forty-three".