100112489 has 2 divisors, whose sum is σ = 100112490. Its totient is φ = 100112488.

The previous prime is 100112483. The next prime is 100112497. The reversal of 100112489 is 984211001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70224400 + 29888089 = 8380^2 + 5467^2 .

It is a cyclic number.

It is not a de Polignac number, because 100112489 - 2¹⁶ = 100046953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (100112483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50056244 + 50056245.

It is an arithmetic number, because the mean of its divisors is an integer number (50056245).

Almost surely, 2^100112489 is an apocalyptic number.

It is an amenable number.

100112489 is a deficient number, since it is larger than the sum of its proper divisors (1).

100112489 is an equidigital number, since it uses as much as digits as its factorization.

100112489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 100112489 is about 10005.6228691671. The cubic root of 100112489 is about 464.3328607046.

The spelling of 100112489 in words is "one hundred million, one hundred twelve thousand, four hundred eighty-nine".