100030187 has 2 divisors, whose sum is σ = 100030188. Its totient is φ = 100030186.

The previous prime is 100030181. The next prime is 100030213. The reversal of 100030187 is 781030001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100030187 - 2⁴ = 100030171 is a prime.

It is a super-2 number, since 2×100030187² = 20012076622509938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100030181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50015093 + 50015094.

It is an arithmetic number, because the mean of its divisors is an integer number (50015094).

Almost surely, 2^100030187 is an apocalyptic number.

100030187 is a deficient number, since it is larger than the sum of its proper divisors (1).

100030187 is an equidigital number, since it uses as much as digits as its factorization.

100030187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 100030187 is about 10001.5092361103. The cubic root of 100030187 is about 464.2055838765.

Adding to 100030187 its reverse (781030001), we get a palindrome (881060188).

The spelling of 100030187 in words is "one hundred million, thirty thousand, one hundred eighty-seven".