1422129 has 4 divisors (see below), whose sum is σ = 1896176. Its totient is φ = 948084.

The previous prime is 1422119. The next prime is 1422133. The reversal of 1422129 is 9212241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1422129 - 2⁵ = 1422097 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1422119) 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, 237019 + ... + 237024.

It is an arithmetic number, because the mean of its divisors is an integer number (474044).

2^1422129 is an apocalyptic number.

It is an amenable number.

1422129 is a deficient number, since it is larger than the sum of its proper divisors (474047).

1422129 is an equidigital number, since it uses as much as digits as its factorization.

1422129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474046.

The product of its digits is 288, while the sum is 21.

The square root of 1422129 is about 1192.5305027545. The cubic root of 1422129 is about 112.4552315699.

It can be divided in two parts, 1422 and 129, that added together give a palindrome (1551).

The spelling of 1422129 in words is "one million, four hundred twenty-two thousand, one hundred twenty-nine".