1042305253 has 6 divisors (see below), whose sum is σ = 1145674502. Its totient is φ = 947550120.

The previous prime is 1042305233. The next prime is 1042305263. The reversal of 1042305253 is 3525032401.

It can be written as a sum of positive squares in only one way, i.e., 933791364 + 108513889 = 30558^2 + 10417^2 .

It is not a de Polignac number, because 1042305253 - 2¹⁷ = 1042174181 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 (1042305203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4306926 + ... + 4307167.

Almost surely, 2^1042305253 is an apocalyptic number.

It is an amenable number.

1042305253 is a deficient number, since it is larger than the sum of its proper divisors (103369249).

1042305253 is an equidigital number, since it uses as much as digits as its factorization.

1042305253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614115 (or 8614104 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1042305253 is about 32284.7526395975. The cubic root of 1042305253 is about 1013.9074375370.

Adding to 1042305253 its reverse (3525032401), we get a palindrome (4567337654).

The spelling of 1042305253 in words is "one billion, forty-two million, three hundred five thousand, two hundred fifty-three".