101810001 has 8 divisors (see below), whose sum is σ = 135974944. Its totient is φ = 67759200.

The previous prime is 101809993. The next prime is 101810017. The reversal of 101810001 is 100018101.

It is a happy number.

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

It is not a de Polignac number, because 101810001 - 2³ = 101809993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101810081) 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, 26431 + ... + 30036.

It is an arithmetic number, because the mean of its divisors is an integer number (16996868).

Almost surely, 2^101810001 is an apocalyptic number.

It is an amenable number.

101810001 is a deficient number, since it is larger than the sum of its proper divisors (34164943).

101810001 is an equidigital number, since it uses as much as digits as its factorization.

101810001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57071.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 101810001 is about 10090.0942017406. The cubic root of 101810001 is about 466.9425821283.

Adding to 101810001 its reverse (100018101), we get a palindrome (201828102).

The spelling of 101810001 in words is "one hundred one million, eight hundred ten thousand, one".