102866942 has 4 divisors (see below), whose sum is σ = 154300416. Its totient is φ = 51433470.

The previous prime is 102866941. The next prime is 102866947. The reversal of 102866942 is 249668201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249668201 = 1543 ⋅161807.

It is a junction number, because it is equal to n+sod(n) for n = 102866896 and 102866905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102866941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25716734 + ... + 25716737.

It is an arithmetic number, because the mean of its divisors is an integer number (38575104).

Almost surely, 2^102866942 is an apocalyptic number.

102866942 is a deficient number, since it is larger than the sum of its proper divisors (51433474).

102866942 is an equidigital number, since it uses as much as digits as its factorization.

102866942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51433473.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 102866942 is about 10142.3341494944. The cubic root of 102866942 is about 468.5528780173.

The spelling of 102866942 in words is "one hundred two million, eight hundred sixty-six thousand, nine hundred forty-two".