1125004375 has 20 divisors (see below), whose sum is σ = 1533615336. Its totient is φ = 818180000.

The previous prime is 1125004343. The next prime is 1125004379. The reversal of 1125004375 is 5734005211.

It is a happy number.

It is not a de Polignac number, because 1125004375 - 2⁵ = 1125004343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125004379) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74944 + ... + 88693.

Almost surely, 2^1125004375 is an apocalyptic number.

1125004375 is a deficient number, since it is larger than the sum of its proper divisors (408610961).

1125004375 is an equidigital number, since it uses as much as digits as its factorization.

1125004375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163668 (or 163653 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1125004375 is about 33541.0848810828. The cubic root of 1125004375 is about 1040.0432597267.

Adding to 1125004375 its reverse (5734005211), we get a palindrome (6859009586).

The spelling of 1125004375 in words is "one billion, one hundred twenty-five million, four thousand, three hundred seventy-five".