1042271305 has 32 divisors (see below), whose sum is σ = 1315012608. Its totient is φ = 792115200.

The previous prime is 1042271303. The next prime is 1042271323. The reversal of 1042271305 is 5031722401.

It is a happy number.

It is not a de Polignac number, because 1042271305 - 2¹ = 1042271303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042271305.

It is not an unprimeable number, because it can be changed into a prime (1042271303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2721144 + ... + 2721526.

It is an arithmetic number, because the mean of its divisors is an integer number (41094144).

Almost surely, 2^1042271305 is an apocalyptic number.

It is an amenable number.

1042271305 is a deficient number, since it is larger than the sum of its proper divisors (272741303).

1042271305 is a wasteful number, since it uses less digits than its factorization.

1042271305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1042271305 is about 32284.2268762936. The cubic root of 1042271305 is about 1013.8964297242.

Adding to 1042271305 its reverse (5031722401), we get a palindrome (6073993706).

The spelling of 1042271305 in words is "one billion, forty-two million, two hundred seventy-one thousand, three hundred five".