1022135 has 4 divisors (see below), whose sum is σ = 1226568. Its totient is φ = 817704.

The previous prime is 1022129. The next prime is 1022137. The reversal of 1022135 is 5312201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5312201 = 37 ⋅143573.

It is a cyclic number.

It is not a de Polignac number, because 1022135 - 2⁶ = 1022071 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 (1022137) 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 3 ways as a sum of consecutive naturals, for example, 102209 + ... + 102218.

It is an arithmetic number, because the mean of its divisors is an integer number (306642).

2^1022135 is an apocalyptic number.

1022135 is a deficient number, since it is larger than the sum of its proper divisors (204433).

1022135 is an equidigital number, since it uses as much as digits as its factorization.

1022135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204432.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1022135 is about 1011.0069238141. The cubic root of 1022135 is about 100.7324553268.

Subtracting from 1022135 its sum of digits (14), we obtain a square (1022121 = 1011²).

Adding to 1022135 its reverse (5312201), we get a palindrome (6334336).

The spelling of 1022135 in words is "one million, twenty-two thousand, one hundred thirty-five".