1161334761 has 4 divisors (see below), whose sum is σ = 1548446352. Its totient is φ = 774223172.

The previous prime is 1161334721. The next prime is 1161334789. The reversal of 1161334761 is 1674331611.

1161334761 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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: 1674331611 = 3 ⋅558110537.

It is a cyclic number.

It is not a de Polignac number, because 1161334761 - 2¹⁷ = 1161203689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161334711) 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, 193555791 + ... + 193555796.

It is an arithmetic number, because the mean of its divisors is an integer number (387111588).

Almost surely, 2^1161334761 is an apocalyptic number.

It is an amenable number.

1161334761 is a deficient number, since it is larger than the sum of its proper divisors (387111591).

1161334761 is an equidigital number, since it uses as much as digits as its factorization.

1161334761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387111590.

The product of its digits is 9072, while the sum is 33.

The square root of 1161334761 is about 34078.3620645124. The cubic root of 1161334761 is about 1051.1204248632.

The spelling of 1161334761 in words is "one billion, one hundred sixty-one million, three hundred thirty-four thousand, seven hundred sixty-one".