1000100255 has 16 divisors (see below), whose sum is σ = 1496254464. Its totient is φ = 623438880.

The previous prime is 1000100239. The next prime is 1000100279. The reversal of 1000100255 is 5520010001.

It is not a de Polignac number, because 1000100255 - 2⁴ = 1000100239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298447 + ... + 1299216.

It is an arithmetic number, because the mean of its divisors is an integer number (93515904).

Almost surely, 2^1000100255 is an apocalyptic number.

1000100255 is a deficient number, since it is larger than the sum of its proper divisors (496154209).

1000100255 is a wasteful number, since it uses less digits than its factorization.

1000100255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597686.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1000100255 is about 31624.3617326896. The cubic root of 1000100255 is about 1000.0334172166.

Adding to 1000100255 its reverse (5520010001), we get a palindrome (6520110256).

The spelling of 1000100255 in words is "one billion, one hundred thousand, two hundred fifty-five".