100345445 has 8 divisors (see below), whose sum is σ = 123215136. Its totient is φ = 78409296.

The previous prime is 100345387. The next prime is 100345447. The reversal of 100345445 is 544543001.

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

It is not a de Polignac number, because 100345445 - 2²² = 96151141 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 (100345447) 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, 233147 + ... + 233576.

It is an arithmetic number, because the mean of its divisors is an integer number (15401892).

Almost surely, 2^100345445 is an apocalyptic number.

It is an amenable number.

100345445 is a deficient number, since it is larger than the sum of its proper divisors (22869691).

100345445 is an equidigital number, since it uses as much as digits as its factorization.

100345445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466771.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 100345445 is about 10017.2573591777. The cubic root of 100345445 is about 464.6927403232.

Adding to 100345445 its reverse (544543001), we get a palindrome (644888446).

The spelling of 100345445 in words is "one hundred million, three hundred forty-five thousand, four hundred forty-five".