1025348689 has 4 divisors (see below), whose sum is σ = 1032833124. Its totient is φ = 1017864256.

The previous prime is 1025348657. The next prime is 1025348711. The reversal of 1025348689 is 9868435201.

1025348689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9868435201 = 29 ⋅340290869.

It can be written as a sum of positive squares in 2 ways, for example, as 660233025 + 365115664 = 25695^2 + 19108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025348689 - 2⁵ = 1025348657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025348629) 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, 3742012 + ... + 3742285.

It is an arithmetic number, because the mean of its divisors is an integer number (258208281).

Almost surely, 2^1025348689 is an apocalyptic number.

It is an amenable number.

1025348689 is a deficient number, since it is larger than the sum of its proper divisors (7484435).

1025348689 is an equidigital number, since it uses as much as digits as its factorization.

1025348689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7484434.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1025348689 is about 32021.0663314013. The cubic root of 1025348689 is about 1008.3791566332.

The spelling of 1025348689 in words is "one billion, twenty-five million, three hundred forty-eight thousand, six hundred eighty-nine".