102147800 has 48 divisors (see below), whose sum is σ = 250002600. Its totient is φ = 38707200.

The previous prime is 102147767. The next prime is 102147817. The reversal of 102147800 is 8741201.

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 11 ways as a sum of consecutive naturals, for example, 9641 + ... + 17240.

Almost surely, 2^102147800 is an apocalyptic number.

102147800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102147800 is an abundant number, since it is smaller than the sum of its proper divisors (147854800).

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

102147800 is a wasteful number, since it uses less digits than its factorization.

102147800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26916 (or 26907 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 102147800 is about 10106.8194799353. The cubic root of 102147800 is about 467.4584404513.

The spelling of 102147800 in words is "one hundred two million, one hundred forty-seven thousand, eight hundred".