1163601361 has 8 divisors (see below), whose sum is σ = 1283673384. Its totient is φ = 1047895680.

The previous prime is 1163601359. The next prime is 1163601389. The reversal of 1163601361 is 1631063611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36723600 + 1126877761 = 6060^2 + 33569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1163601361 - 2¹ = 1163601359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163601311) 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, 1091026 + ... + 1092091.

It is an arithmetic number, because the mean of its divisors is an integer number (160459173).

Almost surely, 2^1163601361 is an apocalyptic number.

It is an amenable number.

1163601361 is a deficient number, since it is larger than the sum of its proper divisors (120072023).

1163601361 is a wasteful number, since it uses less digits than its factorization.

1163601361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183171.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1163601361 is about 34111.6015601730. The cubic root of 1163601361 is about 1051.8038112971.

Adding to 1163601361 its reverse (1631063611), we get a palindrome (2794664972).

The spelling of 1163601361 in words is "one billion, one hundred sixty-three million, six hundred one thousand, three hundred sixty-one".