102102518 has 16 divisors (see below), whose sum is σ = 178758144. Its totient is φ = 42826920.

The previous prime is 102102487. The next prime is 102102529. The reversal of 102102518 is 815201201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102102518.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 76928 + ... + 78243.

It is an arithmetic number, because the mean of its divisors is an integer number (11172384).

Almost surely, 2^102102518 is an apocalyptic number.

102102518 is a deficient number, since it is larger than the sum of its proper divisors (76655626).

102102518 is a wasteful number, since it uses less digits than its factorization.

102102518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155227.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 102102518 is about 10104.5790610000. The cubic root of 102102518 is about 467.3893556490.

Adding to 102102518 its reverse (815201201), we get a palindrome (917303719).

The spelling of 102102518 in words is "one hundred two million, one hundred two thousand, five hundred eighteen".