102505132532 has 24 divisors (see below), whose sum is σ = 195876146592. Its totient is φ = 46549306400.

The previous prime is 102505132511. The next prime is 102505132579. The reversal of 102505132532 is 235231505201.

It is a junction number, because it is equal to n+sod(n) for n = 102505132495 and 102505132504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051178 + ... + 1144545.

It is an arithmetic number, because the mean of its divisors is an integer number (8161506108).

Almost surely, 2^102505132532 is an apocalyptic number.

It is an amenable number.

102505132532 is a deficient number, since it is larger than the sum of its proper divisors (93371014060).

102505132532 is a wasteful number, since it uses less digits than its factorization.

102505132532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196799 (or 2196797 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 102505132532 its reverse (235231505201), we get a palindrome (337736637733).

The spelling of 102505132532 in words is "one hundred two billion, five hundred five million, one hundred thirty-two thousand, five hundred thirty-two".