1161005060 has 24 divisors (see below), whose sum is σ = 2438757720. Its totient is φ = 464278784.

The previous prime is 1161005057. The next prime is 1161005081. The reversal of 1161005060 is 605001611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 752075776 + 408929284 = 27424^2 + 20222^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126962 + ... + 135798.

It is an arithmetic number, because the mean of its divisors is an integer number (101614905).

Almost surely, 2^1161005060 is an apocalyptic number.

1161005060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161005060 is an abundant number, since it is smaller than the sum of its proper divisors (1277752660).

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

1161005060 is a wasteful number, since it uses less digits than its factorization.

1161005060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15415 (or 15413 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1161005060 is about 34073.5243260805. The cubic root of 1161005060 is about 1051.0209450039.

Adding to 1161005060 its reverse (605001611), we get a palindrome (1766006671).

The spelling of 1161005060 in words is "one billion, one hundred sixty-one million, five thousand, sixty".