1171347072 has 64 divisors (see below), whose sum is σ = 3555883200. Its totient is φ = 334669824.

The previous prime is 1171347043. The next prime is 1171347077. The reversal of 1171347072 is 2707431711.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1171347077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215197 + ... + 220572.

It is an arithmetic number, because the mean of its divisors is an integer number (55560675).

Almost surely, 2^1171347072 is an apocalyptic number.

1171347072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1171347072 is an abundant number, since it is smaller than the sum of its proper divisors (2384536128).

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

1171347072 is an equidigital number, since it uses as much as digits as its factorization.

1171347072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435793 (or 435781 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 1171347072 is about 34224.9480934595. The cubic root of 1171347072 is about 1054.1324890133.

Adding to 1171347072 its reverse (2707431711), we get a palindrome (3878778783).

It can be divided in two parts, 11713 and 47072, that added together give a palindrome (58785).

The spelling of 1171347072 in words is "one billion, one hundred seventy-one million, three hundred forty-seven thousand, seventy-two".