106202181 has 4 divisors (see below), whose sum is σ = 141602912. Its totient is φ = 70801452.

The previous prime is 106202141. The next prime is 106202197. The reversal of 106202181 is 181202601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 106202181 - 2¹⁴ = 106185797 is a prime.

It is a super-2 number, since 2×106202181² = 22557806498313522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106202141) 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, 17700361 + ... + 17700366.

It is an arithmetic number, because the mean of its divisors is an integer number (35400728).

Almost surely, 2^106202181 is an apocalyptic number.

It is an amenable number.

106202181 is a deficient number, since it is larger than the sum of its proper divisors (35400731).

106202181 is an equidigital number, since it uses as much as digits as its factorization.

106202181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35400730.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 106202181 is about 10305.4442407885. Note that the first 3 decimals coincide. The cubic root of 106202181 is about 473.5630531544.

Adding to 106202181 its reverse (181202601), we get a palindrome (287404782).

The spelling of 106202181 in words is "one hundred six million, two hundred two thousand, one hundred eighty-one".