100642134 has 16 divisors (see below), whose sum is σ = 205567488. Its totient is φ = 32833512.

The previous prime is 100642127. The next prime is 100642163. The reversal of 100642134 is 431246001.

It is a self number, because there is not a number n which added to its sum of digits gives 100642134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178162 + ... + 178725.

It is an arithmetic number, because the mean of its divisors is an integer number (12847968).

Almost surely, 2^100642134 is an apocalyptic number.

100642134 is an abundant number, since it is smaller than the sum of its proper divisors (104925354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100642134 is a wasteful number, since it uses less digits than its factorization.

100642134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356939.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 100642134 is about 10032.0553228140. The cubic root of 100642134 is about 465.1502717005.

Adding to 100642134 its reverse (431246001), we get a palindrome (531888135).

The spelling of 100642134 in words is "one hundred million, six hundred forty-two thousand, one hundred thirty-four".