20100995 has 8 divisors (see below), whose sum is σ = 24682416. Its totient is φ = 15706656.

The previous prime is 20100991. The next prime is 20101001. The reversal of 20100995 is 59900102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20100995 - 2² = 20100991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46532 + ... + 46961.

It is an arithmetic number, because the mean of its divisors is an integer number (3085302).

Almost surely, 2^20100995 is an apocalyptic number.

20100995 is a deficient number, since it is larger than the sum of its proper divisors (4581421).

20100995 is an equidigital number, since it uses as much as digits as its factorization.

20100995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93541.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 20100995 is about 4483.4133202282. The cubic root of 20100995 is about 271.8978990709.

The spelling of 20100995 in words is "twenty million, one hundred thousand, nine hundred ninety-five".