1131005733 has 32 divisors (see below), whose sum is σ = 1875871872. Its totient is φ = 595507200.

The previous prime is 1131005731. The next prime is 1131005753. The reversal of 1131005733 is 3375001311.

It is not a de Polignac number, because 1131005733 - 2¹ = 1131005731 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131005731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70248 + ... + 84833.

It is an arithmetic number, because the mean of its divisors is an integer number (58620996).

Almost surely, 2^1131005733 is an apocalyptic number.

1131005733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1131005733 is a deficient number, since it is larger than the sum of its proper divisors (744866139).

1131005733 is a wasteful number, since it uses less digits than its factorization.

1131005733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155125.

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 1131005733 is about 33630.4286770181. The cubic root of 1131005733 is about 1041.8893580109.

The spelling of 1131005733 in words is "one billion, one hundred thirty-one million, five thousand, seven hundred thirty-three".