1142005065 has 32 divisors (see below), whose sum is σ = 1916161920. Its totient is φ = 579995136.

The previous prime is 1142005057. The next prime is 1142005079. The reversal of 1142005065 is 5605002411.

It is not a de Polignac number, because 1142005065 - 2³ = 1142005057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13774 + ... + 49736.

It is an arithmetic number, because the mean of its divisors is an integer number (59880060).

Almost surely, 2^1142005065 is an apocalyptic number.

1142005065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142005065 is a deficient number, since it is larger than the sum of its proper divisors (774156855).

1142005065 is a wasteful number, since it uses less digits than its factorization.

1142005065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36073.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1142005065 is about 33793.5654378167. The cubic root of 1142005065 is about 1045.2560181006.

Adding to 1142005065 its reverse (5605002411), we get a palindrome (6747007476).

The spelling of 1142005065 in words is "one billion, one hundred forty-two million, five thousand, sixty-five".