1139216843 has 2 divisors, whose sum is σ = 1139216844. Its totient is φ = 1139216842.

The previous prime is 1139216833. The next prime is 1139216863. The reversal of 1139216843 is 3486129311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139216843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1139216797 and 1139216806.

It is not a weakly prime, because it can be changed into another prime (1139216803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569608421 + 569608422.

It is an arithmetic number, because the mean of its divisors is an integer number (569608422).

Almost surely, 2^1139216843 is an apocalyptic number.

1139216843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139216843 is an equidigital number, since it uses as much as digits as its factorization.

1139216843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 1139216843 is about 33752.2864855109. The cubic root of 1139216843 is about 1044.4046555886.

The spelling of 1139216843 in words is "one billion, one hundred thirty-nine million, two hundred sixteen thousand, eight hundred forty-three".