1161326963 has 2 divisors, whose sum is σ = 1161326964. Its totient is φ = 1161326962.

The previous prime is 1161326923. The next prime is 1161326977. The reversal of 1161326963 is 3696231611.

It is a strong prime.

It is an emirp because it is prime and its reverse (3696231611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161326963 - 2⁸ = 1161326707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161326923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580663481 + 580663482.

It is an arithmetic number, because the mean of its divisors is an integer number (580663482).

Almost surely, 2^1161326963 is an apocalyptic number.

1161326963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161326963 is an equidigital number, since it uses as much as digits as its factorization.

1161326963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 1161326963 is about 34078.2476515445. The cubic root of 1161326963 is about 1051.1180722096.

The spelling of 1161326963 in words is "one billion, one hundred sixty-one million, three hundred twenty-six thousand, nine hundred sixty-three".