100226556 has 18 divisors (see below), whose sum is σ = 253350552. Its totient is φ = 33408840.

The previous prime is 100226537. The next prime is 100226557. The reversal of 100226556 is 655622001.

100226556 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 2 + 655 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×100226556² = 20090725055242272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100226557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1392000 + ... + 1392071.

Almost surely, 2^100226556 is an apocalyptic number.

It is an amenable number.

100226556 is an abundant number, since it is smaller than the sum of its proper divisors (153123996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100226556 is a wasteful number, since it uses less digits than its factorization.

100226556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784081 (or 2784076 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 100226556 is about 10011.3213913049. The cubic root of 100226556 is about 464.5091455809.

Adding to 100226556 its reverse (655622001), we get a palindrome (755848557).

The spelling of 100226556 in words is "one hundred million, two hundred twenty-six thousand, five hundred fifty-six".