1022145 has 16 divisors (see below), whose sum is σ = 1657152. Its totient is φ = 537920.

The previous prime is 1022141. The next prime is 1022167. The reversal of 1022145 is 5412201.

1022145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1022145 - 2² = 1022141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

1022145 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (103572).

2^1022145 is an apocalyptic number.

1022145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022145 is a deficient number, since it is larger than the sum of its proper divisors (635007).

1022145 is an equidigital number, since it uses as much as digits as its factorization.

1022145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1022145 is about 1011.0118693665. The cubic root of 1022145 is about 100.7327838291.

Adding to 1022145 its reverse (5412201), we get a palindrome (6434346).

It can be divided in two parts, 10 and 22145, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 1022145 in words is "one million, twenty-two thousand, one hundred forty-five".