102126605 has 16 divisors (see below), whose sum is σ = 140361984. Its totient is φ = 69878400.

The previous prime is 102126593. The next prime is 102126631. The reversal of 102126605 is 506621201.

It is not a de Polignac number, because 102126605 - 2⁴ = 102126589 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14705 + ... + 20505.

It is an arithmetic number, because the mean of its divisors is an integer number (8772624).

Almost surely, 2^102126605 is an apocalyptic number.

It is an amenable number.

102126605 is a deficient number, since it is larger than the sum of its proper divisors (38235379).

102126605 is an equidigital number, since it uses as much as digits as its factorization.

102126605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 102126605 is about 10105.7708760886. The cubic root of 102126605 is about 467.4261066925.

Adding to 102126605 its reverse (506621201), we get a palindrome (608747806).

The spelling of 102126605 in words is "one hundred two million, one hundred twenty-six thousand, six hundred five".