1142002565 has 16 divisors (see below), whose sum is σ = 1497061440. Its totient is φ = 829393920.

The previous prime is 1142002559. The next prime is 1142002567. The reversal of 1142002565 is 5652002411.

It is not a de Polignac number, because 1142002565 - 2⁴ = 1142002549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142002567) 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 15 ways as a sum of consecutive naturals, for example, 26597 + ... + 54693.

It is an arithmetic number, because the mean of its divisors is an integer number (93566340).

Almost surely, 2^1142002565 is an apocalyptic number.

It is an amenable number.

1142002565 is a deficient number, since it is larger than the sum of its proper divisors (355058875).

1142002565 is a wasteful number, since it uses less digits than its factorization.

1142002565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28852.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1142002565 is about 33793.5284485062. The cubic root of 1142002565 is about 1045.2552553655.

Adding to 1142002565 its reverse (5652002411), we get a palindrome (6794004976).

The spelling of 1142002565 in words is "one billion, one hundred forty-two million, two thousand, five hundred sixty-five".