1142127 has 16 divisors (see below), whose sum is σ = 1934080. Its totient is φ = 652536.

The previous prime is 1142083. The next prime is 1142129. The reversal of 1142127 is 7212411.

It is not a de Polignac number, because 1142127 - 2⁷ = 1141999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142129) 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, 2833 + ... + 3210.

It is an arithmetic number, because the mean of its divisors is an integer number (120880).

2^1142127 is an apocalyptic number.

1142127 is a deficient number, since it is larger than the sum of its proper divisors (791953).

1142127 is an equidigital number, since it uses as much as digits as its factorization.

1142127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059 (or 6053 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1142127 is about 1068.7034200376. The cubic root of 1142127 is about 104.5293218390.

Adding to 1142127 its reverse (7212411), we get a palindrome (8354538).

The spelling of 1142127 in words is "one million, one hundred forty-two thousand, one hundred twenty-seven".