1161285733 has 8 divisors (see below), whose sum is σ = 1167170840. Its totient is φ = 1155409920.

The previous prime is 1161285721. The next prime is 1161285767. The reversal of 1161285733 is 3375821611.

It can be written as a sum of positive squares in 4 ways, for example, as 339775489 + 821510244 = 18433^2 + 28662^2 .

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 1161285733 - 2²¹ = 1159188581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161285692 and 1161285701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161385733) 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, 484903 + ... + 487291.

It is an arithmetic number, because the mean of its divisors is an integer number (145896355).

Almost surely, 2^1161285733 is an apocalyptic number.

It is an amenable number.

1161285733 is a deficient number, since it is larger than the sum of its proper divisors (5885107).

1161285733 is a wasteful number, since it uses less digits than its factorization.

1161285733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647.

The product of its digits is 30240, while the sum is 37.

The square root of 1161285733 is about 34077.6427148358. The cubic root of 1161285733 is about 1051.1056329591.

The spelling of 1161285733 in words is "one billion, one hundred sixty-one million, two hundred eighty-five thousand, seven hundred thirty-three".