1171324544 has 48 divisors (see below), whose sum is σ = 2515996770. Its totient is φ = 539966976.

The previous prime is 1171324541. The next prime is 1171324571. The reversal of 1171324544 is 4454231711.

It can be written as a sum of positive squares in only one way, i.e., 1126273600 + 45050944 = 33560^2 + 6712^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1171324544.

It is not an unprimeable number, because it can be changed into a prime (1171324541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1395677 + ... + 1396515.

Almost surely, 2^1171324544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171324544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257998385).

1171324544 is an abundant number, since it is smaller than the sum of its proper divisors (1344672226).

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

1171324544 is an frugal number, since it uses more digits than its factorization.

1171324544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705 (or 854 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 1171324544 is about 34224.6189752348. The cubic root of 1171324544 is about 1054.1257310820.

The spelling of 1171324544 in words is "one billion, one hundred seventy-one million, three hundred twenty-four thousand, five hundred forty-four".