100122305 has 16 divisors (see below), whose sum is σ = 126969600. Its totient is φ = 75582720.

The previous prime is 100122301. The next prime is 100122313. The reversal of 100122305 is 503221001.

It is a happy number.

It is not a de Polignac number, because 100122305 - 2² = 100122301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100122305.

It is not an unprimeable number, because it can be changed into a prime (100122301) 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, 23801 + ... + 27689.

It is an arithmetic number, because the mean of its divisors is an integer number (7935600).

Almost surely, 2^100122305 is an apocalyptic number.

It is an amenable number.

100122305 is a deficient number, since it is larger than the sum of its proper divisors (26847295).

100122305 is a wasteful number, since it uses less digits than its factorization.

100122305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 100122305 is about 10006.1133813284. The cubic root of 100122305 is about 464.3480361086.

Adding to 100122305 its reverse (503221001), we get a palindrome (603343306).

The spelling of 100122305 in words is "one hundred million, one hundred twenty-two thousand, three hundred five".