100268861 has 16 divisors (see below), whose sum is σ = 126258048. Its totient is φ = 77352000.

The previous prime is 100268843. The next prime is 100268869. The reversal of 100268861 is 168862001.

It is not a de Polignac number, because 100268861 - 2⁶ = 100268797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100268869) 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, 1331 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (7891128).

Almost surely, 2^100268861 is an apocalyptic number.

100268861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100268861 is a deficient number, since it is larger than the sum of its proper divisors (25989187).

100268861 is a wasteful number, since it uses less digits than its factorization.

100268861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 100268861 is about 10013.4340263468. The cubic root of 100268861 is about 464.5744918523.

The spelling of 100268861 in words is "one hundred million, two hundred sixty-eight thousand, eight hundred sixty-one".