102131684 has 12 divisors (see below), whose sum is σ = 186501504. Its totient is φ = 48845544.

The previous prime is 102131681. The next prime is 102131693. The reversal of 102131684 is 486131201.

It is not an unprimeable number, because it can be changed into a prime (102131681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554972 + ... + 555155.

It is an arithmetic number, because the mean of its divisors is an integer number (15541792).

Almost surely, 2^102131684 is an apocalyptic number.

It is an amenable number.

102131684 is a deficient number, since it is larger than the sum of its proper divisors (84369820).

102131684 is a wasteful number, since it uses less digits than its factorization.

102131684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110154 (or 1110152 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 102131684 is about 10106.0221650262. The cubic root of 102131684 is about 467.4338553030.

Adding to 102131684 its reverse (486131201), we get a palindrome (588262885).

The spelling of 102131684 in words is "one hundred two million, one hundred thirty-one thousand, six hundred eighty-four".