100081015 has 8 divisors (see below), whose sum is σ = 120623040. Its totient is φ = 79714272.

The previous prime is 100080997. The next prime is 100081031. The reversal of 100081015 is 510180001.

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

It is a cyclic number.

It is not a de Polignac number, because 100081015 - 2⁵ = 100080983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100081015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42559 + ... + 44848.

It is an arithmetic number, because the mean of its divisors is an integer number (15077880).

Almost surely, 2^100081015 is an apocalyptic number.

100081015 is a deficient number, since it is larger than the sum of its proper divisors (20542025).

100081015 is an equidigital number, since it uses as much as digits as its factorization.

100081015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87641.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 100081015 is about 10004.0499299034. The cubic root of 100081015 is about 464.2841956332.

The spelling of 100081015 in words is "one hundred million, eighty-one thousand, fifteen".