1900100001 has 16 divisors (see below), whose sum is σ = 2565316800. Its totient is φ = 1250907840.

The previous prime is 1900099987. The next prime is 1900100003. The reversal of 1900100001 is 1000010091.

It is not a de Polignac number, because 1900100001 - 2⁶ = 1900099937 is a prime.

It is a super-2 number, since 2×1900100001² = 7220760027600400002, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1900100001.

It is not an unprimeable number, because it can be changed into a prime (1900100003) 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 15 ways as a sum of consecutive naturals, for example, 65046 + ... + 89616.

It is an arithmetic number, because the mean of its divisors is an integer number (160332300).

Almost surely, 2^1900100001 is an apocalyptic number.

It is an amenable number.

1900100001 is a deficient number, since it is larger than the sum of its proper divisors (665216799).

1900100001 is a wasteful number, since it uses less digits than its factorization.

1900100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24896.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1900100001 is about 43590.1365104538. The cubic root of 1900100001 is about 1238.5840586299.

Adding to 1900100001 its reverse (1000010091), we get a palindrome (2900110092).

The spelling of 1900100001 in words is "one billion, nine hundred million, one hundred thousand, one".