1161105733 has 4 divisors (see below), whose sum is σ = 1165390528. Its totient is φ = 1156820940.

The previous prime is 1161105731. The next prime is 1161105767. The reversal of 1161105733 is 3375011611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3375011611 = 2221 ⋅1519591.

It is a cyclic number.

It is not a de Polignac number, because 1161105733 - 2¹ = 1161105731 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161105731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141991 + ... + 2142532.

It is an arithmetic number, because the mean of its divisors is an integer number (291347632).

Almost surely, 2^1161105733 is an apocalyptic number.

It is an amenable number.

1161105733 is a deficient number, since it is larger than the sum of its proper divisors (4284795).

1161105733 is an equidigital number, since it uses as much as digits as its factorization.

1161105733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284794.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 1161105733 is about 34075.0015847395. The cubic root of 1161105733 is about 1051.0513228139.

The spelling of 1161105733 in words is "one billion, one hundred sixty-one million, one hundred five thousand, seven hundred thirty-three".