1422154 has 8 divisors (see below), whose sum is σ = 2168388. Its totient is φ = 699360.

The previous prime is 1422133. The next prime is 1422163. The reversal of 1422154 is 4512241.

It can be written as a sum of positive squares in 2 ways, for example, as 1375929 + 46225 = 1173^2 + 215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 5707 + ... + 5950.

2^1422154 is an apocalyptic number.

1422154 is a deficient number, since it is larger than the sum of its proper divisors (746234).

1422154 is a wasteful number, since it uses less digits than its factorization.

1422154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11720.

The product of its digits is 320, while the sum is 19.

The square root of 1422154 is about 1192.5409846207. The cubic root of 1422154 is about 112.4558905266.

Adding to 1422154 its reverse (4512241), we get a palindrome (5934395).

The spelling of 1422154 in words is "one million, four hundred twenty-two thousand, one hundred fifty-four".