1156311104 has 28 divisors (see below), whose sum is σ = 2471060844. Its totient is φ = 533681664.

The previous prime is 1156311103. The next prime is 1156311119. The reversal of 1156311104 is 4011136511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 568345600 + 587965504 = 23840^2 + 24248^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1156311104.

It is not an unprimeable number, because it can be changed into a prime (1156311103) 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 3 ways as a sum of consecutive naturals, for example, 694067 + ... + 695730.

It is an arithmetic number, because the mean of its divisors is an integer number (88252173).

Almost surely, 2^1156311104 is an apocalyptic number.

It is an amenable number.

1156311104 is an abundant number, since it is smaller than the sum of its proper divisors (1314749740).

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

1156311104 is a wasteful number, since it uses less digits than its factorization.

1156311104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389822 (or 1389812 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1156311104 is about 34004.5747510537. The cubic root of 1156311104 is about 1049.6026021463.

Adding to 1156311104 its reverse (4011136511), we get a palindrome (5167447615).

The spelling of 1156311104 in words is "one billion, one hundred fifty-six million, three hundred eleven thousand, one hundred four".