1023435425 has 6 divisors (see below), whose sum is σ = 1269059958. Its totient is φ = 818748320.

The previous prime is 1023435421. The next prime is 1023435467. The reversal of 1023435425 is 5245343201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 270536704 + 752898721 = 16448^2 + 27439^2 .

It is not a de Polignac number, because 1023435425 - 2² = 1023435421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1023435421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20468684 + ... + 20468733.

It is an arithmetic number, because the mean of its divisors is an integer number (211509993).

Almost surely, 2^1023435425 is an apocalyptic number.

It is an amenable number.

1023435425 is a deficient number, since it is larger than the sum of its proper divisors (245624533).

1023435425 is an equidigital number, since it uses as much as digits as its factorization.

1023435425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40937427 (or 40937422 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1023435425 is about 31991.1772993743. The cubic root of 1023435425 is about 1007.7515662977.

Adding to 1023435425 its reverse (5245343201), we get a palindrome (6268778626).

The spelling of 1023435425 in words is "one billion, twenty-three million, four hundred thirty-five thousand, four hundred twenty-five".