1172604553 has 4 divisors (see below), whose sum is σ = 1179382788. Its totient is φ = 1165826320.

The previous prime is 1172604541. The next prime is 1172604569. The reversal of 1172604553 is 3554062711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1003812489 + 168792064 = 31683^2 + 12992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1172604553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172644553) 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, 3388858 + ... + 3389203.

It is an arithmetic number, because the mean of its divisors is an integer number (294845697).

Almost surely, 2^1172604553 is an apocalyptic number.

It is an amenable number.

1172604553 is a deficient number, since it is larger than the sum of its proper divisors (6778235).

1172604553 is an equidigital number, since it uses as much as digits as its factorization.

1172604553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778234.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1172604553 is about 34243.3139897411. The cubic root of 1172604553 is about 1054.5095698260.

The spelling of 1172604553 in words is "one billion, one hundred seventy-two million, six hundred four thousand, five hundred fifty-three".