106842381 has 4 divisors (see below), whose sum is σ = 142456512. Its totient is φ = 71228252.

The previous prime is 106842371. The next prime is 106842391. The reversal of 106842381 is 183248601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 183248601 = 3 ⋅61082867.

It is an interprime number because it is at equal distance from previous prime (106842371) and next prime (106842391).

It is a cyclic number.

It is not a de Polignac number, because 106842381 - 2¹¹ = 106840333 is a prime.

It is a super-2 number, since 2×106842381² = 22830588755498322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106842361) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 17807061 + ... + 17807066.

It is an arithmetic number, because the mean of its divisors is an integer number (35614128).

Almost surely, 2^106842381 is an apocalyptic number.

It is an amenable number.

106842381 is a deficient number, since it is larger than the sum of its proper divisors (35614131).

106842381 is an equidigital number, since it uses as much as digits as its factorization.

106842381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35614130.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 106842381 is about 10336.4588230206. The cubic root of 106842381 is about 474.5127132066.

The spelling of 106842381 in words is "one hundred six million, eight hundred forty-two thousand, three hundred eighty-one".