102643568 has 20 divisors (see below), whose sum is σ = 199053480. Its totient is φ = 51274944.

The previous prime is 102643561. The next prime is 102643613. The reversal of 102643568 is 865346201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102643561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21146 + ... + 25542.

It is an arithmetic number, because the mean of its divisors is an integer number (9952674).

Almost surely, 2^102643568 is an apocalyptic number.

It is an amenable number.

102643568 is a deficient number, since it is larger than the sum of its proper divisors (96409912).

102643568 is a wasteful number, since it uses less digits than its factorization.

102643568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 102643568 is about 10131.3162027448. The cubic root of 102643568 is about 468.2134804170.

Adding to 102643568 its reverse (865346201), we get a palindrome (967989769).

The spelling of 102643568 in words is "one hundred two million, six hundred forty-three thousand, five hundred sixty-eight".