102700720 has 20 divisors (see below), whose sum is σ = 238779360. Its totient is φ = 41080256.

The previous prime is 102700699. The next prime is 102700733. The reversal of 102700720 is 27007201.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 641800 + ... + 641959.

It is an arithmetic number, because the mean of its divisors is an integer number (11938968).

Almost surely, 2^102700720 is an apocalyptic number.

102700720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102700720 is an abundant number, since it is smaller than the sum of its proper divisors (136078640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102700720 is a wasteful number, since it uses less digits than its factorization.

102700720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283772 (or 1283766 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 102700720 is about 10134.1363716895. The cubic root of 102700720 is about 468.3003648084.

Adding to 102700720 its reverse (27007201), we get a palindrome (129707921).

The spelling of 102700720 in words is "one hundred two million, seven hundred thousand, seven hundred twenty".