1125327145 has 4 divisors (see below), whose sum is σ = 1350392580. Its totient is φ = 900261712.

The previous prime is 1125327131. The next prime is 1125327149. The reversal of 1125327145 is 5417235211.

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 585833616 + 539493529 = 24204^2 + 23227^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125327145 - 2⁹ = 1125326633 is a prime.

It is a super-2 number, since 2×1125327145² = 2532722366547702050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125327149) 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, 112532710 + ... + 112532719.

It is an arithmetic number, because the mean of its divisors is an integer number (337598145).

Almost surely, 2^1125327145 is an apocalyptic number.

It is an amenable number.

1125327145 is a deficient number, since it is larger than the sum of its proper divisors (225065435).

1125327145 is an equidigital number, since it uses as much as digits as its factorization.

1125327145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225065434.

The product of its digits is 8400, while the sum is 31.

The square root of 1125327145 is about 33545.8960977345. The cubic root of 1125327145 is about 1040.1427149440.

The spelling of 1125327145 in words is "one billion, one hundred twenty-five million, three hundred twenty-seven thousand, one hundred forty-five".