100556229 has 8 divisors (see below), whose sum is σ = 134396640. Its totient is φ = 66876656.

The previous prime is 100556191. The next prime is 100556249. The reversal of 100556229 is 922655001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100556229 - 2⁹ = 100555717 is a prime.

It is a super-2 number, since 2×100556229² = 20223110381400882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100556196 and 100556205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100556249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38742 + ... + 41255.

It is an arithmetic number, because the mean of its divisors is an integer number (16799580).

Almost surely, 2^100556229 is an apocalyptic number.

It is an amenable number.

100556229 is a deficient number, since it is larger than the sum of its proper divisors (33840411).

100556229 is an equidigital number, since it uses as much as digits as its factorization.

100556229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80419.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 100556229 is about 10027.7728833475. The cubic root of 100556229 is about 465.0178880851.

The spelling of 100556229 in words is "one hundred million, five hundred fifty-six thousand, two hundred twenty-nine".