106638001 has 4 divisors (see below), whose sum is σ = 106696692. Its totient is φ = 106579312.

The previous prime is 106637989. The next prime is 106638029. The reversal of 106638001 is 100836601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100836601 = 3001 ⋅33601.

It can be written as a sum of positive squares in 2 ways, for example, as 91699776 + 14938225 = 9576^2 + 3865^2 .

It is a cyclic number.

It is not a de Polignac number, because 106638001 - 2⁵ = 106637969 is a prime.

It is a super-2 number, since 2×106638001² = 22743326514552002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106638031) 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, 26530 + ... + 30283.

It is an arithmetic number, because the mean of its divisors is an integer number (26674173).

Almost surely, 2^106638001 is an apocalyptic number.

It is an amenable number.

106638001 is a deficient number, since it is larger than the sum of its proper divisors (58691).

106638001 is an equidigital number, since it uses as much as digits as its factorization.

106638001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58690.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 106638001 is about 10326.5677260162. The cubic root of 106638001 is about 474.2099531600.

The spelling of 106638001 in words is "one hundred six million, six hundred thirty-eight thousand, one".