1403143 has 8 divisors (see below), whose sum is σ = 1643040. Its totient is φ = 1173120.

The previous prime is 1403137. The next prime is 1403147. The reversal of 1403143 is 3413041.

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

It is a cyclic number.

It is not a de Polignac number, because 1403143 - 2¹⁷ = 1272071 is a prime.

1403143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2158 + ... + 2731.

It is an arithmetic number, because the mean of its divisors is an integer number (205380).

2^1403143 is an apocalyptic number.

1403143 is a deficient number, since it is larger than the sum of its proper divisors (239897).

1403143 is an equidigital number, since it uses as much as digits as its factorization.

1403143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1403143 is about 1184.5433719371. The cubic root of 1403143 is about 111.9525468618.

Adding to 1403143 its reverse (3413041), we get a palindrome (4816184).

The spelling of 1403143 in words is "one million, four hundred three thousand, one hundred forty-three".