1423144 has 8 divisors (see below), whose sum is σ = 2668410. Its totient is φ = 711568.

The previous prime is 1423129. The next prime is 1423159. The reversal of 1423144 is 4413241.

It is an interprime number because it is at equal distance from previous prime (1423129) and next prime (1423159).

It can be written as a sum of positive squares in only one way, i.e., 1350244 + 72900 = 1162^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 88939 + ... + 88954.

2^1423144 is an apocalyptic number.

It is an amenable number.

1423144 is a deficient number, since it is larger than the sum of its proper divisors (1245266).

1423144 is a wasteful number, since it uses less digits than its factorization.

1423144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177899 (or 177895 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 1423144 is about 1192.9559924825. The cubic root of 1423144 is about 112.4819790064.

Adding to 1423144 its reverse (4413241), we get a palindrome (5836385).

The spelling of 1423144 in words is "one million, four hundred twenty-three thousand, one hundred forty-four".