100138954 has 8 divisors (see below), whose sum is σ = 151586820. Its totient is φ = 49610016.

The previous prime is 100138939. The next prime is 100138963. The reversal of 100138954 is 459831001.

It can be written as a sum of positive squares in 2 ways, for example, as 81450625 + 18688329 = 9025^2 + 4323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229459 + ... + 229894.

Almost surely, 2^100138954 is an apocalyptic number.

100138954 is a deficient number, since it is larger than the sum of its proper divisors (51447866).

100138954 is a wasteful number, since it uses less digits than its factorization.

100138954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459464.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 100138954 is about 10006.9452881486. The cubic root of 100138954 is about 464.3737729710.

Adding to 100138954 its reverse (459831001), we get a palindrome (559969955).

The spelling of 100138954 in words is "one hundred million, one hundred thirty-eight thousand, nine hundred fifty-four".