101998001 has 8 divisors (see below), whose sum is σ = 116802240. Its totient is φ = 87252048.

The previous prime is 101997997. The next prime is 101998019. The reversal of 101998001 is 100899101.

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 101998001 - 2² = 101997997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101998051) 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, 10751 + ... + 17876.

It is an arithmetic number, because the mean of its divisors is an integer number (14600280).

Almost surely, 2^101998001 is an apocalyptic number.

It is an amenable number.

101998001 is a deficient number, since it is larger than the sum of its proper divisors (14804239).

101998001 is an equidigital number, since it uses as much as digits as its factorization.

101998001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29143.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 101998001 is about 10099.4059726303. The cubic root of 101998001 is about 467.2298205329.

The spelling of 101998001 in words is "one hundred one million, nine hundred ninety-eight thousand, one".