10143999 has 6 divisors (see below), whose sum is σ = 14652456. Its totient is φ = 6762660.

The previous prime is 10143977. The next prime is 10144003. The reversal of 10143999 is 99934101.

It is not a de Polignac number, because 10143999 - 2¹¹ = 10141951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563547 + ... + 563564.

It is an arithmetic number, because the mean of its divisors is an integer number (2442076).

Almost surely, 2^10143999 is an apocalyptic number.

10143999 is a deficient number, since it is larger than the sum of its proper divisors (4508457).

10143999 is a wasteful number, since it uses less digits than its factorization.

10143999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127117 (or 1127114 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 10143999 is about 3184.9645209955. The cubic root of 10143999 is about 216.4726660569.

It can be divided in two parts, 101 and 43999, that added together give a square (44100 = 210²).

The spelling of 10143999 in words is "ten million, one hundred forty-three thousand, nine hundred ninety-nine".