102643036 has 6 divisors (see below), whose sum is σ = 179625320. Its totient is φ = 51321516.

The previous prime is 102643031. The next prime is 102643063. The reversal of 102643036 is 630346201.

It is a self number, because there is not a number n which added to its sum of digits gives 102643036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102643031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12830376 + ... + 12830383.

Almost surely, 2^102643036 is an apocalyptic number.

It is an amenable number.

102643036 is a deficient number, since it is larger than the sum of its proper divisors (76982284).

102643036 is a wasteful number, since it uses less digits than its factorization.

102643036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25660763 (or 25660761 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 102643036 is about 10131.2899474845. The cubic root of 102643036 is about 468.2126715012.

Adding to 102643036 its reverse (630346201), we get a palindrome (732989237).

The spelling of 102643036 in words is "one hundred two million, six hundred forty-three thousand, thirty-six".