1161501313 has 8 divisors (see below), whose sum is σ = 1340573760. Its totient is φ = 985714800.

The previous prime is 1161501287. The next prime is 1161501323. The reversal of 1161501313 is 3131051611.

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

It is not a de Polignac number, because 1161501313 - 2⁵ = 1161501281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161501323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820723 + ... + 822136.

It is an arithmetic number, because the mean of its divisors is an integer number (167571720).

Almost surely, 2^1161501313 is an apocalyptic number.

It is an amenable number.

1161501313 is a deficient number, since it is larger than the sum of its proper divisors (179072447).

1161501313 is a wasteful number, since it uses less digits than its factorization.

1161501313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642967.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 1161501313 is about 34080.8056389517. The cubic root of 1161501313 is about 1051.1706710244.

Adding to 1161501313 its reverse (3131051611), we get a palindrome (4292552924).

The spelling of 1161501313 in words is "one billion, one hundred sixty-one million, five hundred one thousand, three hundred thirteen".