1182952561 has 12 divisors (see below), whose sum is σ = 1376678820. Its totient is φ = 1013523840.

The previous prime is 1182952553. The next prime is 1182952607. The reversal of 1182952561 is 1652592811.

It can be written as a sum of positive squares in 2 ways, for example, as 472410225 + 710542336 = 21735^2 + 26656^2 .

It is not a de Polignac number, because 1182952561 - 2³ = 1182952553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1182952861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169501 + ... + 176341.

It is an arithmetic number, because the mean of its divisors is an integer number (114723235).

Almost surely, 2^1182952561 is an apocalyptic number.

It is an amenable number.

1182952561 is a deficient number, since it is larger than the sum of its proper divisors (193726259).

1182952561 is an equidigital number, since it uses as much as digits as its factorization.

1182952561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10384 (or 10377 counting only the distinct ones).

The product of its digits is 43200, while the sum is 40.

The square root of 1182952561 is about 34394.0774116707. The cubic root of 1182952561 is about 1057.6024371555.

The spelling of 1182952561 in words is "one billion, one hundred eighty-two million, nine hundred fifty-two thousand, five hundred sixty-one".