10143983 has 4 divisors (see below), whose sum is σ = 10286928. Its totient is φ = 10001040.

The previous prime is 10143977. The next prime is 10144003. The reversal of 10143983 is 38934101.

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

It is a cyclic number.

It is not a de Polignac number, because 10143983 - 2⁶ = 10143919 is a prime.

It is a super-2 number, since 2×10143983² = 205800782208578, 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 (10143923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71366 + ... + 71507.

It is an arithmetic number, because the mean of its divisors is an integer number (2571732).

Almost surely, 2^10143983 is an apocalyptic number.

10143983 is a deficient number, since it is larger than the sum of its proper divisors (142945).

10143983 is an equidigital number, since it uses as much as digits as its factorization.

10143983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142944.

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

The square root of 10143983 is about 3184.9620091926. The cubic root of 10143983 is about 216.4725522436.

The spelling of 10143983 in words is "ten million, one hundred forty-three thousand, nine hundred eighty-three".