100240989 has 8 divisors (see below), whose sum is σ = 136498560. Its totient is φ = 65405376.

The previous prime is 100240957. The next prime is 100240991. The reversal of 100240989 is 989042001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100240989 - 2⁵ = 100240957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100240909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355324 + ... + 355605.

It is an arithmetic number, because the mean of its divisors is an integer number (17062320).

Almost surely, 2^100240989 is an apocalyptic number.

It is an amenable number.

100240989 is a deficient number, since it is larger than the sum of its proper divisors (36257571).

100240989 is an equidigital number, since it uses as much as digits as its factorization.

100240989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710979.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 100240989 is about 10012.0421992718. The cubic root of 100240989 is about 464.5314415304.

The spelling of 100240989 in words is "one hundred million, two hundred forty thousand, nine hundred eighty-nine".