1173345056 has 24 divisors (see below), whose sum is σ = 2487718044. Its totient is φ = 541543680.

The previous prime is 1173345053. The next prime is 1173345059. The reversal of 1173345056 is 6505433711.

It is an interprime number because it is at equal distance from previous prime (1173345053) and next prime (1173345059).

It can be written as a sum of positive squares in 2 ways, for example, as 979690000 + 193655056 = 31300^2 + 13916^2 .

It is not an unprimeable number, because it can be changed into a prime (1173345053) 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, 1409855 + ... + 1410686.

Almost surely, 2^1173345056 is an apocalyptic number.

1173345056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1173345056 is an abundant number, since it is smaller than the sum of its proper divisors (1314372988).

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

1173345056 is a wasteful number, since it uses less digits than its factorization.

1173345056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820564 (or 2820556 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 1173345056 is about 34254.1246567475. The cubic root of 1173345056 is about 1054.7314983475.

Adding to 1173345056 its reverse (6505433711), we get a palindrome (7678778767).

The spelling of 1173345056 in words is "one billion, one hundred seventy-three million, three hundred forty-five thousand, fifty-six".