101091996 has 48 divisors (see below), whose sum is σ = 277512480. Its totient is φ = 31714560.

The previous prime is 101091983. The next prime is 101091997. The reversal of 101091996 is 699190101.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 101091996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101091997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25695 + ... + 29366.

It is an arithmetic number, because the mean of its divisors is an integer number (5781510).

Almost surely, 2^101091996 is an apocalyptic number.

It is an amenable number.

101091996 is an abundant number, since it is smaller than the sum of its proper divisors (176420484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101091996 is a wasteful number, since it uses less digits than its factorization.

101091996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55091 (or 55083 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The square root of 101091996 is about 10054.4515514274. The cubic root of 101091996 is about 465.8423026731.

The spelling of 101091996 in words is "one hundred one million, ninety-one thousand, nine hundred ninety-six".