6900143 has 4 divisors (see below), whose sum is σ = 6905400. Its totient is φ = 6894888.

The previous prime is 6900121. The next prime is 6900149. The reversal of 6900143 is 3410096.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6900143 is a prime.

It is a super-2 number, since 2×6900143² = 95223946840898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900149) 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, 1196 + ... + 3902.

It is an arithmetic number, because the mean of its divisors is an integer number (1726350).

Almost surely, 2^6900143 is an apocalyptic number.

6900143 is a deficient number, since it is larger than the sum of its proper divisors (5257).

6900143 is a wasteful number, since it uses less digits than its factorization.

6900143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 6900143 is about 2626.8123267565. The cubic root of 6900143 is about 190.3791413577.

The spelling of 6900143 in words is "six million, nine hundred thousand, one hundred forty-three".