100002605 has 16 divisors (see below), whose sum is σ = 129012480. Its totient is φ = 74175552.

The previous prime is 100002593. The next prime is 100002611. The reversal of 100002605 is 506200001.

It is a cyclic number.

It is not a de Polignac number, because 100002605 - 2⁴ = 100002589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100002605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6734 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (8063280).

Almost surely, 2^100002605 is an apocalyptic number.

It is an amenable number.

100002605 is a deficient number, since it is larger than the sum of its proper divisors (29009875).

100002605 is a wasteful number, since it uses less digits than its factorization.

100002605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22468.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 100002605 is about 10000.1302491518. The cubic root of 100002605 is about 464.1629137726.

Adding to 100002605 its reverse (506200001), we get a palindrome (606202606).

The spelling of 100002605 in words is "one hundred million, two thousand, six hundred five".