100330045 has 4 divisors (see below), whose sum is σ = 120396060. Its totient is φ = 80264032.

The previous prime is 100330019. The next prime is 100330081. The reversal of 100330045 is 540033001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540033001 = 43 ⋅12558907.

It can be written as a sum of positive squares in 2 ways, for example, as 15007876 + 85322169 = 3874^2 + 9237^2 .

It is a cyclic number.

It is not a de Polignac number, because 100330045 - 2⁷ = 100329917 is a prime.

It is a super-2 number, since 2×100330045² = 20132235859404050, which contains 22 as substring.

It is a congruent number.

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, 10033000 + ... + 10033009.

It is an arithmetic number, because the mean of its divisors is an integer number (30099015).

Almost surely, 2^100330045 is an apocalyptic number.

It is an amenable number.

100330045 is a deficient number, since it is larger than the sum of its proper divisors (20066015).

100330045 is an equidigital number, since it uses as much as digits as its factorization.

100330045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20066014.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 100330045 is about 10016.4886562108. The cubic root of 100330045 is about 464.6689669992.

Adding to 100330045 its reverse (540033001), we get a palindrome (640363046).

The spelling of 100330045 in words is "one hundred million, three hundred thirty thousand, forty-five".