101190055 has 4 divisors (see below), whose sum is σ = 121428072. Its totient is φ = 80952040.

The previous prime is 101190049. The next prime is 101190059. The reversal of 101190055 is 550091101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101190055 - 2¹³ = 101181863 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101190059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10119001 + ... + 10119010.

It is an arithmetic number, because the mean of its divisors is an integer number (30357018).

Almost surely, 2^101190055 is an apocalyptic number.

101190055 is a deficient number, since it is larger than the sum of its proper divisors (20238017).

101190055 is an equidigital number, since it uses as much as digits as its factorization.

101190055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20238016.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 101190055 is about 10059.3267667374. The cubic root of 101190055 is about 465.9928759802.

The spelling of 101190055 in words is "one hundred one million, one hundred ninety thousand, fifty-five".