100115225 has 12 divisors (see below), whose sum is σ = 141877824. Its totient is φ = 68650320.

The previous prime is 100115209. The next prime is 100115231. The reversal of 100115225 is 522511001.

It is not a de Polignac number, because 100115225 - 2⁴ = 100115209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285869 + ... + 286218.

It is an arithmetic number, because the mean of its divisors is an integer number (11823152).

Almost surely, 2^100115225 is an apocalyptic number.

It is an amenable number.

100115225 is a deficient number, since it is larger than the sum of its proper divisors (41762599).

100115225 is an equidigital number, since it uses as much as digits as its factorization.

100115225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572104 (or 572099 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 100115225 is about 10005.7595913554. The cubic root of 100115225 is about 464.3370906235.

Adding to 100115225 its reverse (522511001), we get a palindrome (622626226).

The spelling of 100115225 in words is "one hundred million, one hundred fifteen thousand, two hundred twenty-five".