1674143 has 4 divisors (see below), whose sum is σ = 1772640. Its totient is φ = 1575648.

The previous prime is 1674133. The next prime is 1674151. The reversal of 1674143 is 3414761.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1674143 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1674133) 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, 49223 + ... + 49256.

It is an arithmetic number, because the mean of its divisors is an integer number (443160).

2^1674143 is an apocalyptic number.

1674143 is a deficient number, since it is larger than the sum of its proper divisors (98497).

1674143 is an equidigital number, since it uses as much as digits as its factorization.

1674143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98496.

The product of its digits is 2016, while the sum is 26.

The square root of 1674143 is about 1293.8867802091. The cubic root of 1674143 is about 118.7401291888.

The spelling of 1674143 in words is "one million, six hundred seventy-four thousand, one hundred forty-three".