1125000029 has 4 divisors (see below), whose sum is σ = 1125213276. Its totient is φ = 1124786784.

The previous prime is 1125000017. The next prime is 1125000049. The reversal of 1125000029 is 9200005211.

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 440916004 + 684084025 = 20998^2 + 26155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125000029 - 2⁸ = 1124999773 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 (1125000049) 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, 98504 + ... + 109329.

It is an arithmetic number, because the mean of its divisors is an integer number (281303319).

Almost surely, 2^1125000029 is an apocalyptic number.

It is an amenable number.

1125000029 is a deficient number, since it is larger than the sum of its proper divisors (213247).

1125000029 is an equidigital number, since it uses as much as digits as its factorization.

1125000029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213246.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1125000029 is about 33541.0200948033. The cubic root of 1125000029 is about 1040.0419204626.

The spelling of 1125000029 in words is "one billion, one hundred twenty-five million, twenty-nine", and thus it is an aban number.