100004155 has 16 divisors (see below), whose sum is σ = 123814944. Its totient is φ = 77483520.

The previous prime is 100004153. The next prime is 100004159. The reversal of 100004155 is 551400001.

It is a happy number.

It is not a de Polignac number, because 100004155 - 2¹ = 100004153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100004153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43464 + ... + 45706.

It is an arithmetic number, because the mean of its divisors is an integer number (7738434).

Almost surely, 2^100004155 is an apocalyptic number.

100004155 is a deficient number, since it is larger than the sum of its proper divisors (23810789).

100004155 is a wasteful number, since it uses less digits than its factorization.

100004155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 100004155 is about 10000.2077478420. The cubic root of 100004155 is about 464.1653118728.

Adding to 100004155 its reverse (551400001), we get a palindrome (651404156).

The spelling of 100004155 in words is "one hundred million, four thousand, one hundred fifty-five".