102743999 has 8 divisors (see below), whose sum is σ = 103466880. Its totient is φ = 102024216.

The previous prime is 102743941. The next prime is 102744011. The reversal of 102743999 is 999347201.

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 102743999 - 2²⁰ = 101695423 is a prime.

It is a super-3 number, since 3×102743999³ (a number of 25 digits) contains 333 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 (102743929) 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, 123824 + ... + 124650.

It is an arithmetic number, because the mean of its divisors is an integer number (12933360).

Almost surely, 2^102743999 is an apocalyptic number.

102743999 is a deficient number, since it is larger than the sum of its proper divisors (722881).

102743999 is an equidigital number, since it uses as much as digits as its factorization.

102743999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 102743999 is about 10136.2714545340. The cubic root of 102743999 is about 468.3661375546.

The spelling of 102743999 in words is "one hundred two million, seven hundred forty-three thousand, nine hundred ninety-nine".