102642886 has 16 divisors (see below), whose sum is σ = 155320704. Its totient is φ = 50871744.

The previous prime is 102642871. The next prime is 102642887. The reversal of 102642886 is 688246201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102642887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166050 + ... + 166666.

It is an arithmetic number, because the mean of its divisors is an integer number (9707544).

Almost surely, 2^102642886 is an apocalyptic number.

102642886 is a deficient number, since it is larger than the sum of its proper divisors (52677818).

102642886 is a wasteful number, since it uses less digits than its factorization.

102642886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 102642886 is about 10131.2825446732. The cubic root of 102642886 is about 468.2124434229.

The spelling of 102642886 in words is "one hundred two million, six hundred forty-two thousand, eight hundred eighty-six".