1179918361 has 2 divisors, whose sum is σ = 1179918362. Its totient is φ = 1179918360.

The previous prime is 1179918349. The next prime is 1179918413. The reversal of 1179918361 is 1638199711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166632336 + 13286025 = 34156^2 + 3645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1179918361 - 2⁵ = 1179918329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1179918661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589959180 + 589959181.

It is an arithmetic number, because the mean of its divisors is an integer number (589959181).

Almost surely, 2^1179918361 is an apocalyptic number.

It is an amenable number.

1179918361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1179918361 is an equidigital number, since it uses as much as digits as its factorization.

1179918361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 46.

The square root of 1179918361 is about 34349.9397524945. The cubic root of 1179918361 is about 1056.6974347217.

The spelling of 1179918361 in words is "one billion, one hundred seventy-nine million, nine hundred eighteen thousand, three hundred sixty-one".