1139216941 has 2 divisors, whose sum is σ = 1139216942. Its totient is φ = 1139216940.

The previous prime is 1139216929. The next prime is 1139216987. The reversal of 1139216941 is 1496129311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001975716 + 137241225 = 31654^2 + 11715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139216941 - 2²³ = 1130828333 is a prime.

It is a super-2 number, since 2×1139216941² = 2595630477322794962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1139216941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1139216921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569608470 + 569608471.

It is an arithmetic number, because the mean of its divisors is an integer number (569608471).

Almost surely, 2^1139216941 is an apocalyptic number.

It is an amenable number.

1139216941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139216941 is an equidigital number, since it uses as much as digits as its factorization.

1139216941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 37.

The square root of 1139216941 is about 33752.2879372643. The cubic root of 1139216941 is about 1044.4046855365.

The spelling of 1139216941 in words is "one billion, one hundred thirty-nine million, two hundred sixteen thousand, nine hundred forty-one".