101131166 has 4 divisors (see below), whose sum is σ = 151696752. Its totient is φ = 50565582.

The previous prime is 101131159. The next prime is 101131183. The reversal of 101131166 is 661131101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661131101 = 2659 ⋅248639.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25282790 + ... + 25282793.

It is an arithmetic number, because the mean of its divisors is an integer number (37924188).

Almost surely, 2^101131166 is an apocalyptic number.

101131166 is a deficient number, since it is larger than the sum of its proper divisors (50565586).

101131166 is an equidigital number, since it uses as much as digits as its factorization.

101131166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50565585.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 101131166 is about 10056.3992561950. The cubic root of 101131166 is about 465.9024613652.

Adding to 101131166 its reverse (661131101), we get a palindrome (762262267).

The spelling of 101131166 in words is "one hundred one million, one hundred thirty-one thousand, one hundred sixty-six".