102147100 has 36 divisors (see below), whose sum is σ = 241812648. Its totient is φ = 37144000.

The previous prime is 102147083. The next prime is 102147103. The reversal of 102147100 is 1741201.

It is a super-3 number, since 3×102147100³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102147103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45331 + ... + 47530.

It is an arithmetic number, because the mean of its divisors is an integer number (6717018).

Almost surely, 2^102147100 is an apocalyptic number.

102147100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102147100 is an abundant number, since it is smaller than the sum of its proper divisors (139665548).

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

102147100 is a wasteful number, since it uses less digits than its factorization.

102147100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92886 (or 92879 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 102147100 is about 10106.7848497927. The cubic root of 102147100 is about 467.4573726468.

Adding to 102147100 its reverse (1741201), we get a palindrome (103888301).

The spelling of 102147100 in words is "one hundred two million, one hundred forty-seven thousand, one hundred".