1161331060 has 12 divisors (see below), whose sum is σ = 2438795268. Its totient is φ = 464532416.

The previous prime is 1161331051. The next prime is 1161331069. The reversal of 1161331060 is 601331611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1161331051) and next prime (1161331069).

It can be written as a sum of positive squares in 2 ways, for example, as 580135396 + 581195664 = 24086^2 + 24108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161331069) 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, 29033257 + ... + 29033296.

It is an arithmetic number, because the mean of its divisors is an integer number (203232939).

Almost surely, 2^1161331060 is an apocalyptic number.

1161331060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161331060 is an abundant number, since it is smaller than the sum of its proper divisors (1277464208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161331060 is a wasteful number, since it uses less digits than its factorization.

1161331060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58066562 (or 58066560 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1161331060 is about 34078.3077631504. The cubic root of 1161331060 is about 1051.1193082742.

Adding to 1161331060 its reverse (601331611), we get a palindrome (1762662671).

The spelling of 1161331060 in words is "one billion, one hundred sixty-one million, three hundred thirty-one thousand, sixty".