1040100205 has 16 divisors (see below), whose sum is σ = 1322694144. Its totient is φ = 782449920.

The previous prime is 1040100199. The next prime is 1040100209. The reversal of 1040100205 is 5020010401.

It is not a de Polignac number, because 1040100205 - 2³ = 1040100197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040100209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106060 + ... + 115450.

It is an arithmetic number, because the mean of its divisors is an integer number (82668384).

Almost surely, 2^1040100205 is an apocalyptic number.

It is an amenable number.

1040100205 is a deficient number, since it is larger than the sum of its proper divisors (282593939).

1040100205 is a wasteful number, since it uses less digits than its factorization.

1040100205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1040100205 is about 32250.5845683454. The cubic root of 1040100205 is about 1013.1919424027.

Adding to 1040100205 its reverse (5020010401), we get a palindrome (6060110606).

The spelling of 1040100205 in words is "one billion, forty million, one hundred thousand, two hundred five".