1181465953 has 2 divisors, whose sum is σ = 1181465954. Its totient is φ = 1181465952.

The previous prime is 1181465939. The next prime is 1181466019. The reversal of 1181465953 is 3595641811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 988033489 + 193432464 = 31433^2 + 13908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1181465953 - 2¹⁷ = 1181334881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1181465903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590732976 + 590732977.

It is an arithmetic number, because the mean of its divisors is an integer number (590732977).

Almost surely, 2^1181465953 is an apocalyptic number.

It is an amenable number.

1181465953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181465953 is an equidigital number, since it uses as much as digits as its factorization.

1181465953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 43.

The square root of 1181465953 is about 34372.4592224647. The cubic root of 1181465953 is about 1057.1592243101.

The spelling of 1181465953 in words is "one billion, one hundred eighty-one million, four hundred sixty-five thousand, nine hundred fifty-three".