100229115 has 32 divisors (see below), whose sum is σ = 188236800. Its totient is φ = 44578944.

The previous prime is 100229113. The next prime is 100229149. The reversal of 100229115 is 511922001.

It is not a de Polignac number, because 100229115 - 2¹ = 100229113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 100229091 and 100229100.

It is not an unprimeable number, because it can be changed into a prime (100229111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9015 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (5882400).

Almost surely, 2^100229115 is an apocalyptic number.

100229115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100229115 is a deficient number, since it is larger than the sum of its proper divisors (88007685).

100229115 is a wasteful number, since it uses less digits than its factorization.

100229115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25851.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 100229115 is about 10011.4491957958. The cubic root of 100229115 is about 464.5130988538.

The spelling of 100229115 in words is "one hundred million, two hundred twenty-nine thousand, one hundred fifteen".