102193720 has 16 divisors (see below), whose sum is σ = 229935960. Its totient is φ = 40877472.

The previous prime is 102193717. The next prime is 102193733. The reversal of 102193720 is 27391201.

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, 1277382 + ... + 1277461.

Almost surely, 2^102193720 is an apocalyptic number.

102193720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102193720 is an abundant number, since it is smaller than the sum of its proper divisors (127742240).

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

102193720 is a wasteful number, since it uses less digits than its factorization.

102193720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554854 (or 2554850 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 102193720 is about 10109.0909581426. The cubic root of 102193720 is about 467.5284777757.

The spelling of 102193720 in words is "one hundred two million, one hundred ninety-three thousand, seven hundred twenty".