1196027981 has 2 divisors, whose sum is σ = 1196027982. Its totient is φ = 1196027980.

The previous prime is 1196027879. The next prime is 1196027983. The reversal of 1196027981 is 1897206911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1163423881 + 32604100 = 34109^2 + 5710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1196027981 is a prime.

It is a super-2 number, since 2×1196027981² = 2860965862669872722, which contains 22 as substring.

Together with 1196027983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1196027983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598013990 + 598013991.

It is an arithmetic number, because the mean of its divisors is an integer number (598013991).

Almost surely, 2^1196027981 is an apocalyptic number.

It is an amenable number.

1196027981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1196027981 is an equidigital number, since it uses as much as digits as its factorization.

1196027981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 44.

The square root of 1196027981 is about 34583.6374749678. The cubic root of 1196027981 is about 1061.4848009348.

The spelling of 1196027981 in words is "one billion, one hundred ninety-six million, twenty-seven thousand, nine hundred eighty-one".