1404147 has 4 divisors (see below), whose sum is σ = 1872200. Its totient is φ = 936096.

The previous prime is 1404133. The next prime is 1404163. The reversal of 1404147 is 7414041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7414041 = 3 ⋅2471347.

It is not a de Polignac number, because 1404147 - 2⁴ = 1404131 is a prime.

It is a super-4 number, since 4×1404147⁴ (a number of 26 digits) contains 4444 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1404107) 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, 234022 + ... + 234027.

It is an arithmetic number, because the mean of its divisors is an integer number (468050).

2^1404147 is an apocalyptic number.

1404147 is a deficient number, since it is larger than the sum of its proper divisors (468053).

1404147 is an equidigital number, since it uses as much as digits as its factorization.

1404147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468052.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1404147 is about 1184.9670881506. The cubic root of 1404147 is about 111.9792425392.

Adding to 1404147 its reverse (7414041), we get a palindrome (8818188).

It can be divided in two parts, 1404 and 147, that added together give a palindrome (1551).

The spelling of 1404147 in words is "one million, four hundred four thousand, one hundred forty-seven".