1161263471 has 2 divisors, whose sum is σ = 1161263472. Its totient is φ = 1161263470.

The previous prime is 1161263393. The next prime is 1161263479. The reversal of 1161263471 is 1743621611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161263471 is a prime.

It is a super-3 number, since 3×1161263471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161263479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580631735 + 580631736.

It is an arithmetic number, because the mean of its divisors is an integer number (580631736).

Almost surely, 2^1161263471 is an apocalyptic number.

1161263471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161263471 is an equidigital number, since it uses as much as digits as its factorization.

1161263471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 1161263471 is about 34077.3160768274. The cubic root of 1161263471 is about 1051.0989163051.

The spelling of 1161263471 in words is "one billion, one hundred sixty-one million, two hundred sixty-three thousand, four hundred seventy-one".