1142065 has 8 divisors (see below), whose sum is σ = 1430208. Its totient is φ = 873840.

The previous prime is 1142059. The next prime is 1142069. The reversal of 1142065 is 5602411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142065 - 2¹⁷ = 1010993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (178776).

2^1142065 is an apocalyptic number.

It is an amenable number.

1142065 is a deficient number, since it is larger than the sum of its proper divisors (288143).

1142065 is an equidigital number, since it uses as much as digits as its factorization.

1142065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9959.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1142065 is about 1068.6744125317. The cubic root of 1142065 is about 104.5274303578.

Adding to 1142065 its reverse (5602411), we get a palindrome (6744476).

The spelling of 1142065 in words is "one million, one hundred forty-two thousand, sixty-five".