1161306739 has 2 divisors, whose sum is σ = 1161306740. Its totient is φ = 1161306738.

The previous prime is 1161306697. The next prime is 1161306749. The reversal of 1161306739 is 9376031611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161306739 - 2¹¹ = 1161304691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161306698 and 1161306707.

It is not a weakly prime, because it can be changed into another prime (1161306749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580653369 + 580653370.

It is an arithmetic number, because the mean of its divisors is an integer number (580653370).

Almost surely, 2^1161306739 is an apocalyptic number.

1161306739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161306739 is an equidigital number, since it uses as much as digits as its factorization.

1161306739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1161306739 is about 34077.9509213802. The cubic root of 1161306739 is about 1051.1119705873. Note that the first 3 decimals are identical.

The spelling of 1161306739 in words is "one billion, one hundred sixty-one million, three hundred six thousand, seven hundred thirty-nine".