106018381 has 8 divisors (see below), whose sum is σ = 122413760. Its totient is φ = 89935488.

The previous prime is 106018373. The next prime is 106018433. The reversal of 106018381 is 183810601.

It is a happy number.

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 106018381 - 2³ = 106018373 is a prime.

It is a super-2 number, since 2×106018381² = 22479794219722322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106013381) 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, 77391 + ... + 78748.

It is an arithmetic number, because the mean of its divisors is an integer number (15301720).

Almost surely, 2^106018381 is an apocalyptic number.

It is an amenable number.

106018381 is a deficient number, since it is larger than the sum of its proper divisors (16395379).

106018381 is an equidigital number, since it uses as much as digits as its factorization.

106018381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156243.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 106018381 is about 10296.5227625641. The cubic root of 106018381 is about 473.2897029920.

Adding to 106018381 its reverse (183810601), we get a palindrome (289828982).

The spelling of 106018381 in words is "one hundred six million, eighteen thousand, three hundred eighty-one".