106213381 has 8 divisors (see below), whose sum is σ = 107136000. Its totient is φ = 105294960.

The previous prime is 106213369. The next prime is 106213441. The reversal of 106213381 is 183312601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106213381 - 2¹⁹ = 105689093 is a prime.

It is a super-4 number, since 4×106213381⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106213361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67795 + ... + 69343.

It is an arithmetic number, because the mean of its divisors is an integer number (13392000).

Almost surely, 2^106213381 is an apocalyptic number.

It is an amenable number.

106213381 is a deficient number, since it is larger than the sum of its proper divisors (922619).

106213381 is a wasteful number, since it uses less digits than its factorization.

106213381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 106213381 is about 10305.9876285585. The cubic root of 106213381 is about 473.5796997672.

Adding to 106213381 its reverse (183312601), we get a palindrome (289525982).

The spelling of 106213381 in words is "one hundred six million, two hundred thirteen thousand, three hundred eighty-one".