1160728361 has 4 divisors (see below), whose sum is σ = 1250015172. Its totient is φ = 1071441552.

The previous prime is 1160728307. The next prime is 1160728367. The reversal of 1160728361 is 1638270611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 585640000 + 575088361 = 24200^2 + 23981^2 .

It is a cyclic number.

It is not a de Polignac number, because 1160728361 - 2¹⁴ = 1160711977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1160728367) 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, 44643386 + ... + 44643411.

It is an arithmetic number, because the mean of its divisors is an integer number (312503793).

Almost surely, 2^1160728361 is an apocalyptic number.

It is an amenable number.

1160728361 is a deficient number, since it is larger than the sum of its proper divisors (89286811).

1160728361 is an equidigital number, since it uses as much as digits as its factorization.

1160728361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89286810.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1160728361 is about 34069.4637615563. The cubic root of 1160728361 is about 1050.9374427693.

Adding to 1160728361 its reverse (1638270611), we get a palindrome (2798998972).

The spelling of 1160728361 in words is "one billion, one hundred sixty million, seven hundred twenty-eight thousand, three hundred sixty-one".