102342866 has 4 divisors (see below), whose sum is σ = 153514302. Its totient is φ = 51171432.

The previous prime is 102342859. The next prime is 102342869. The reversal of 102342866 is 668243201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668243201 = 29 ⋅23042869.

It can be written as a sum of positive squares in only one way, i.e., 97436641 + 4906225 = 9871^2 + 2215^2 .

It is a super-3 number, since 3×102342866³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102342869) 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 as a sum of consecutive naturals, namely, 25585715 + ... + 25585718.

Almost surely, 2^102342866 is an apocalyptic number.

102342866 is a deficient number, since it is larger than the sum of its proper divisors (51171436).

102342866 is an equidigital number, since it uses as much as digits as its factorization.

102342866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51171435.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 102342866 is about 10116.4650940929. The cubic root of 102342866 is about 467.7558110778.

The spelling of 102342866 in words is "one hundred two million, three hundred forty-two thousand, eight hundred sixty-six".