1196762561 has 2 divisors, whose sum is σ = 1196762562. Its totient is φ = 1196762560.

The previous prime is 1196762543. The next prime is 1196762563. The reversal of 1196762561 is 1652676911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979377025 + 217385536 = 31295^2 + 14744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1196762561 - 2²² = 1192568257 is a prime.

It is a super-2 number, since 2×1196762561² = 2864481254822557442, which contains 22 as substring.

Together with 1196762563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1196762563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598381280 + 598381281.

It is an arithmetic number, because the mean of its divisors is an integer number (598381281).

Almost surely, 2^1196762561 is an apocalyptic number.

It is an amenable number.

1196762561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1196762561 is an equidigital number, since it uses as much as digits as its factorization.

1196762561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 1196762561 is about 34594.2561850952. The cubic root of 1196762561 is about 1061.7020717502.

The spelling of 1196762561 in words is "one billion, one hundred ninety-six million, seven hundred sixty-two thousand, five hundred sixty-one".