1042312065 has 16 divisors (see below), whose sum is σ = 1668222528. Its totient is φ = 555725376.

The previous prime is 1042312057. The next prime is 1042312069. The reversal of 1042312065 is 5602132401.

It is not a de Polignac number, because 1042312065 - 2³ = 1042312057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042312069) 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 15 ways as a sum of consecutive naturals, for example, 49194 + ... + 67116.

It is an arithmetic number, because the mean of its divisors is an integer number (104263908).

Almost surely, 2^1042312065 is an apocalyptic number.

1042312065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042312065 is a deficient number, since it is larger than the sum of its proper divisors (625910463).

1042312065 is a wasteful number, since it uses less digits than its factorization.

1042312065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21808.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1042312065 is about 32284.8581381427. The cubic root of 1042312065 is about 1013.9096463341.

Adding to 1042312065 its reverse (5602132401), we get a palindrome (6644444466).

The spelling of 1042312065 in words is "one billion, forty-two million, three hundred twelve thousand, sixty-five".