1490143 has 4 divisors (see below), whose sum is σ = 1495728. Its totient is φ = 1484560.

The previous prime is 1490129. The next prime is 1490161. The reversal of 1490143 is 3410941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1490143 - 2¹³ = 1481951 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1490143 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371 + ... + 2932.

It is an arithmetic number, because the mean of its divisors is an integer number (373932).

2^1490143 is an apocalyptic number.

1490143 is a deficient number, since it is larger than the sum of its proper divisors (5585).

1490143 is an equidigital number, since it uses as much as digits as its factorization.

1490143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1490143 is about 1220.7141352503. The cubic root of 1490143 is about 114.2201297068.

The spelling of 1490143 in words is "one million, four hundred ninety thousand, one hundred forty-three".