100556117 has 4 divisors (see below), whose sum is σ = 101592876. Its totient is φ = 99519360.

The previous prime is 100556107. The next prime is 100556147. The reversal of 100556117 is 711655001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711655001 = 571 ⋅1246331.

It can be written as a sum of positive squares in 2 ways, for example, as 15437041 + 85119076 = 3929^2 + 9226^2 .

It is a cyclic number.

It is not a de Polignac number, because 100556117 - 2¹⁶ = 100490581 is a prime.

It is a super-2 number, since 2×100556117² = 20223065332235378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100556107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518234 + ... + 518427.

It is an arithmetic number, because the mean of its divisors is an integer number (25398219).

Almost surely, 2^100556117 is an apocalyptic number.

It is an amenable number.

100556117 is a deficient number, since it is larger than the sum of its proper divisors (1036759).

100556117 is an equidigital number, since it uses as much as digits as its factorization.

100556117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036758.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 100556117 is about 10027.7672988557. The cubic root of 100556117 is about 465.0177154387.

The spelling of 100556117 in words is "one hundred million, five hundred fifty-six thousand, one hundred seventeen".