102812043 has 8 divisors (see below), whose sum is σ = 139406400. Its totient is φ = 67379528.

The previous prime is 102812009. The next prime is 102812057. The reversal of 102812043 is 340218201.

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 102812043 - 2²⁵ = 69257611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102812443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290253 + ... + 290606.

It is an arithmetic number, because the mean of its divisors is an integer number (17425800).

Almost surely, 2^102812043 is an apocalyptic number.

102812043 is a deficient number, since it is larger than the sum of its proper divisors (36594357).

102812043 is an equidigital number, since it uses as much as digits as its factorization.

102812043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580921.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 102812043 is about 10139.6273600167. The cubic root of 102812043 is about 468.4695092778.

The spelling of 102812043 in words is "one hundred two million, eight hundred twelve thousand, forty-three".