1142101 has 4 divisors (see below), whose sum is σ = 1144332. Its totient is φ = 1139872.

The previous prime is 1142083. The next prime is 1142129. The reversal of 1142101 is 1012411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 763876 + 378225 = 874^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142101 - 2⁵ = 1142069 is a prime.

It is a Duffinian number.

1142101 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142131) 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 3 ways as a sum of consecutive naturals, for example, 81 + ... + 1513.

It is an arithmetic number, because the mean of its divisors is an integer number (286083).

2^1142101 is an apocalyptic number.

It is an amenable number.

1142101 is a deficient number, since it is larger than the sum of its proper divisors (2231).

1142101 is an equidigital number, since it uses as much as digits as its factorization.

1142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1142101 is about 1068.6912556955. The cubic root of 1142101 is about 104.5285286455.

Adding to 1142101 its reverse (1012411), we get a palindrome (2154512).

The spelling of 1142101 in words is "one million, one hundred forty-two thousand, one hundred one".