102002532405 has 64 divisors (see below), whose sum is σ = 173843221248. Its totient is φ = 50894438400.

The previous prime is 102002532391. The next prime is 102002532421. The reversal of 102002532405 is 504235200201.

It is not a de Polignac number, because 102002532405 - 2¹⁶ = 102002466869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32004222 + ... + 32007408.

It is an arithmetic number, because the mean of its divisors is an integer number (2716300332).

Almost surely, 2^102002532405 is an apocalyptic number.

102002532405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102002532405 is a deficient number, since it is larger than the sum of its proper divisors (71840688843).

102002532405 is a wasteful number, since it uses less digits than its factorization.

102002532405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 102002532405 its reverse (504235200201), we get a palindrome (606237732606).

The spelling of 102002532405 in words is "one hundred two billion, two million, five hundred thirty-two thousand, four hundred five".