1125000765 has 32 divisors (see below), whose sum is σ = 2285717760. Its totient is φ = 514285632.

The previous prime is 1125000761. The next prime is 1125000781. The reversal of 1125000765 is 5670005211.

It is not a de Polignac number, because 1125000765 - 2² = 1125000761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125000761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594294 + ... + 596183.

It is an arithmetic number, because the mean of its divisors is an integer number (71428680).

Almost surely, 2^1125000765 is an apocalyptic number.

1125000765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1125000765 is an abundant number, since it is smaller than the sum of its proper divisors (1160716995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125000765 is a wasteful number, since it uses less digits than its factorization.

1125000765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190498 (or 1190492 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 1125000765 is about 33541.0310664416. The cubic root of 1125000765 is about 1040.0421472687.

Adding to 1125000765 its reverse (5670005211), we get a palindrome (6795005976).

The spelling of 1125000765 in words is "one billion, one hundred twenty-five million, seven hundred sixty-five", and thus it is an aban number.