1125344001 has 4 divisors (see below), whose sum is σ = 1500458672. Its totient is φ = 750229332.

The previous prime is 1125343997. The next prime is 1125344009. The reversal of 1125344001 is 1004435211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1125344001 - 2² = 1125343997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125344009) 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, 187557331 + ... + 187557336.

It is an arithmetic number, because the mean of its divisors is an integer number (375114668).

Almost surely, 2^1125344001 is an apocalyptic number.

It is an amenable number.

1125344001 is a deficient number, since it is larger than the sum of its proper divisors (375114671).

1125344001 is an equidigital number, since it uses as much as digits as its factorization.

1125344001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375114670.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1125344001 is about 33546.1473346791. The cubic root of 1125344001 is about 1040.1479082658.

Adding to 1125344001 its reverse (1004435211), we get a palindrome (2129779212).

The spelling of 1125344001 in words is "one billion, one hundred twenty-five million, three hundred forty-four thousand, one".