1398143 has 8 divisors (see below), whose sum is σ = 1436160. Its totient is φ = 1360800.

The previous prime is 1398139. The next prime is 1398151. The reversal of 1398143 is 3418931.

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 1398143 - 2² = 1398139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 4 and base 16.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398113) 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, 10946 + ... + 11072.

It is an arithmetic number, because the mean of its divisors is an integer number (179520).

2^1398143 is an apocalyptic number.

1398143 is a deficient number, since it is larger than the sum of its proper divisors (38017).

1398143 is a wasteful number, since it uses less digits than its factorization.

1398143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its digits is 2592, while the sum is 29.

The square root of 1398143 is about 1182.4309705010. The cubic root of 1398143 is about 111.8194102902.

The spelling of 1398143 in words is "one million, three hundred ninety-eight thousand, one hundred forty-three".