200401001 has 4 divisors (see below), whose sum is σ = 209114112. Its totient is φ = 191687892.

The previous prime is 200400973. The next prime is 200401013. The reversal of 200401001 is 100104002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200401001 - 2¹⁰ = 200399977 is a prime.

It is a super-2 number, since 2×200401001² = 80321122403604002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200401001.

It is not an unprimeable number, because it can be changed into a prime (200401021) 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, 4356521 + ... + 4356566.

It is an arithmetic number, because the mean of its divisors is an integer number (52278528).

Almost surely, 2^200401001 is an apocalyptic number.

It is an amenable number.

200401001 is a deficient number, since it is larger than the sum of its proper divisors (8713111).

200401001 is an equidigital number, since it uses as much as digits as its factorization.

200401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713110.

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

The square root of 200401001 is about 14156.3060506617. The cubic root of 200401001 is about 585.1941313970.

Adding to 200401001 its reverse (100104002), we get a palindrome (300505003).

The spelling of 200401001 in words is "two hundred million, four hundred one thousand, one".