100510001 has 4 divisors (see below), whose sum is σ = 106422372. Its totient is φ = 94597632.

The previous prime is 100509989. The next prime is 100510031. The reversal of 100510001 is 100015001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100015001 = 151 ⋅662351.

It can be written as a sum of positive squares in 2 ways, for example, as 72165025 + 28344976 = 8495^2 + 5324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100510001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100510031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2956160 + ... + 2956193.

It is an arithmetic number, because the mean of its divisors is an integer number (26605593).

Almost surely, 2^100510001 is an apocalyptic number.

It is an amenable number.

100510001 is a deficient number, since it is larger than the sum of its proper divisors (5912371).

100510001 is an equidigital number, since it uses as much as digits as its factorization.

100510001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912370.

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 100510001 is about 10025.4676200165. The cubic root of 100510001 is about 464.9466173736.

Adding to 100510001 its reverse (100015001), we get a palindrome (200525002).

The spelling of 100510001 in words is "one hundred million, five hundred ten thousand, one".