6143855 has 8 divisors (see below), whose sum is σ = 7387200. Its totient is φ = 4905376.

The previous prime is 6143827. The next prime is 6143861. The reversal of 6143855 is 5583416.

It is a happy number.

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 6143855 - 2⁶ = 6143791 is a prime.

It is a super-2 number, since 2×6143855² = 75493908522050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2741 + ... + 4449.

It is an arithmetic number, because the mean of its divisors is an integer number (923400).

Almost surely, 2^6143855 is an apocalyptic number.

6143855 is a deficient number, since it is larger than the sum of its proper divisors (1243345).

6143855 is a wasteful number, since it uses less digits than its factorization.

6143855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its digits is 14400, while the sum is 32.

The square root of 6143855 is about 2478.6800923072. The cubic root of 6143855 is about 183.1528379676.

The spelling of 6143855 in words is "six million, one hundred forty-three thousand, eight hundred fifty-five".