1173225481 has 4 divisors (see below), whose sum is σ = 1175793172. Its totient is φ = 1170657792.

The previous prime is 1173225463. The next prime is 1173225491. The reversal of 1173225481 is 1845223711.

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 1073545225 + 99680256 = 32765^2 + 9984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173225481 - 2⁷ = 1173225353 is a prime.

It is a super-2 number, since 2×1173225481² = 2752916058535362722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1173225451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283160 + ... + 1284073.

It is an arithmetic number, because the mean of its divisors is an integer number (293948293).

Almost surely, 2^1173225481 is an apocalyptic number.

It is an amenable number.

1173225481 is a deficient number, since it is larger than the sum of its proper divisors (2567691).

1173225481 is an equidigital number, since it uses as much as digits as its factorization.

1173225481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567690.

The product of its digits is 13440, while the sum is 34.

The square root of 1173225481 is about 34252.3792020350. The cubic root of 1173225481 is about 1054.6956680795.

The spelling of 1173225481 in words is "one billion, one hundred seventy-three million, two hundred twenty-five thousand, four hundred eighty-one".