100034405 has 4 divisors (see below), whose sum is σ = 120041292. Its totient is φ = 80027520.

The previous prime is 100034401. The next prime is 100034413. The reversal of 100034405 is 504430001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504430001 = 17 ⋅29672353.

It can be written as a sum of positive squares in 2 ways, for example, as 26863489 + 73170916 = 5183^2 + 8554^2 .

It is not a de Polignac number, because 100034405 - 2² = 100034401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100034401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10003436 + ... + 10003445.

It is an arithmetic number, because the mean of its divisors is an integer number (30010323).

Almost surely, 2^100034405 is an apocalyptic number.

It is an amenable number.

100034405 is a deficient number, since it is larger than the sum of its proper divisors (20006887).

100034405 is an equidigital number, since it uses as much as digits as its factorization.

100034405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20006886.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 100034405 is about 10001.7201020624. The cubic root of 100034405 is about 464.2121085456.

Adding to 100034405 its reverse (504430001), we get a palindrome (604464406).

The spelling of 100034405 in words is "one hundred million, thirty-four thousand, four hundred five".