1161261353 has 8 divisors (see below), whose sum is σ = 1346964672. Its totient is φ = 980510256.

The previous prime is 1161261349. The next prime is 1161261359. The reversal of 1161261353 is 3531621611.

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

It is a cyclic number.

It is not a de Polignac number, because 1161261353 - 2² = 1161261349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161261359) 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, 1237550 + ... + 1238487.

It is an arithmetic number, because the mean of its divisors is an integer number (168370584).

Almost surely, 2^1161261353 is an apocalyptic number.

It is an amenable number.

1161261353 is a deficient number, since it is larger than the sum of its proper divisors (185703319).

1161261353 is an equidigital number, since it uses as much as digits as its factorization.

1161261353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476111.

The product of its digits is 3240, while the sum is 29.

The square root of 1161261353 is about 34077.2850004222. The cubic root of 1161261353 is about 1051.0982772802.

Adding to 1161261353 its reverse (3531621611), we get a palindrome (4692882964).

The spelling of 1161261353 in words is "one billion, one hundred sixty-one million, two hundred sixty-one thousand, three hundred fifty-three".