100435109 has 8 divisors (see below), whose sum is σ = 102021120. Its totient is φ = 98854000.

The previous prime is 100435103. The next prime is 100435123. The reversal of 100435109 is 901534001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100435109 - 2¹⁶ = 100369573 is a prime.

It is a super-2 number, since 2×100435109² = 20174422239683762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100435103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81107 + ... + 82335.

It is an arithmetic number, because the mean of its divisors is an integer number (12752640).

Almost surely, 2^100435109 is an apocalyptic number.

It is an amenable number.

100435109 is a deficient number, since it is larger than the sum of its proper divisors (1586011).

100435109 is a wasteful number, since it uses less digits than its factorization.

100435109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 100435109 is about 10021.7318363644. The cubic root of 100435109 is about 464.8311083567.

The spelling of 100435109 in words is "one hundred million, four hundred thirty-five thousand, one hundred nine".