100445017 has 4 divisors (see below), whose sum is σ = 102340260. Its totient is φ = 98549776.

The previous prime is 100444997. The next prime is 100445021. The reversal of 100445017 is 710544001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710544001 = 3797 ⋅187133.

It can be written as a sum of positive squares in 2 ways, for example, as 29278921 + 71166096 = 5411^2 + 8436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100445017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100445057) 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, 947542 + ... + 947647.

It is an arithmetic number, because the mean of its divisors is an integer number (25585065).

Almost surely, 2^100445017 is an apocalyptic number.

It is an amenable number.

100445017 is a deficient number, since it is larger than the sum of its proper divisors (1895243).

100445017 is an equidigital number, since it uses as much as digits as its factorization.

100445017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895242.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 100445017 is about 10022.2261499130. The cubic root of 100445017 is about 464.8463931684.

Adding to 100445017 its reverse (710544001), we get a palindrome (810989018).

The spelling of 100445017 in words is "one hundred million, four hundred forty-five thousand, seventeen".