100182861 has 12 divisors (see below), whose sum is σ = 146201692. Its totient is φ = 66099456.

The previous prime is 100182851. The next prime is 100182869. The reversal of 100182861 is 168281001.

It can be written as a sum of positive squares in 2 ways, for example, as 52490025 + 47692836 = 7245^2 + 6906^2 .

It is not a de Polignac number, because 100182861 - 2⁵ = 100182829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100182869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56506 + ... + 58251.

Almost surely, 2^100182861 is an apocalyptic number.

It is an amenable number.

100182861 is a deficient number, since it is larger than the sum of its proper divisors (46018831).

100182861 is a wasteful number, since it uses less digits than its factorization.

100182861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114860 (or 114857 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 100182861 is about 10009.1388740491. The cubic root of 100182861 is about 464.4416329436.

The spelling of 100182861 in words is "one hundred million, one hundred eighty-two thousand, eight hundred sixty-one".