1125028767 has 4 divisors (see below), whose sum is σ = 1500038360. Its totient is φ = 750019176.

The previous prime is 1125028763. The next prime is 1125028811. The reversal of 1125028767 is 7678205211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7678205211 = 3 ⋅2559401737.

It is not a de Polignac number, because 1125028767 - 2² = 1125028763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125028763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187504792 + ... + 187504797.

It is an arithmetic number, because the mean of its divisors is an integer number (375009590).

Almost surely, 2^1125028767 is an apocalyptic number.

1125028767 is a deficient number, since it is larger than the sum of its proper divisors (375009593).

1125028767 is an equidigital number, since it uses as much as digits as its factorization.

1125028767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375009592.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1125028767 is about 33541.4484928722. The cubic root of 1125028767 is about 1040.0507763054.

The spelling of 1125028767 in words is "one billion, one hundred twenty-five million, twenty-eight thousand, seven hundred sixty-seven".