100659938 has 4 divisors (see below), whose sum is σ = 150989910. Its totient is φ = 50329968.

The previous prime is 100659931. The next prime is 100659989. The reversal of 100659938 is 839956001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 839956001 = 173 ⋅4855237.

It can be written as a sum of positive squares in only one way, i.e., 96687889 + 3972049 = 9833^2 + 1993^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100659895 and 100659904.

It is not an unprimeable number, because it can be changed into a prime (100659931) by changing a digit.

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 as a sum of consecutive naturals, namely, 25164983 + ... + 25164986.

Almost surely, 2^100659938 is an apocalyptic number.

100659938 is a deficient number, since it is larger than the sum of its proper divisors (50329972).

100659938 is an equidigital number, since it uses as much as digits as its factorization.

100659938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50329971.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 100659938 is about 10032.9426391264. The cubic root of 100659938 is about 465.1776990705.

It can be divided in two parts, 10065993 and 8, that added together give a palindrome (10066001).

The spelling of 100659938 in words is "one hundred million, six hundred fifty-nine thousand, nine hundred thirty-eight".