1131982273 has 8 divisors (see below), whose sum is σ = 1135993320. Its totient is φ = 1127978880.

The previous prime is 1131982253. The next prime is 1131982289. The reversal of 1131982273 is 3722891311.

It can be written as a sum of positive squares in 4 ways, for example, as 80407089 + 1051575184 = 8967^2 + 32428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131982273 - 2⁹ = 1131981761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131982253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491661 + ... + 493957.

It is an arithmetic number, because the mean of its divisors is an integer number (141999165).

Almost surely, 2^1131982273 is an apocalyptic number.

It is an amenable number.

1131982273 is a deficient number, since it is larger than the sum of its proper divisors (4011047).

1131982273 is a wasteful number, since it uses less digits than its factorization.

1131982273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827.

The product of its digits is 18144, while the sum is 37.

The square root of 1131982273 is about 33644.9442412972. The cubic root of 1131982273 is about 1042.1891366104.

The spelling of 1131982273 in words is "one billion, one hundred thirty-one million, nine hundred eighty-two thousand, two hundred seventy-three".