1106381 has 2 divisors, whose sum is σ = 1106382. Its totient is φ = 1106380.

The previous prime is 1106363. The next prime is 1106401. The reversal of 1106381 is 1836011.

1106381 is nontrivially palindromic in base 9.

It is an a-pointer prime, because the next prime (1106401) can be obtained adding 1106381 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 220900 = 941^2 + 470^2 .

It is an emirp because it is prime and its reverse (1836011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1106381 - 2⁶ = 1106317 is a prime.

It is a super-2 number, since 2×1106381² = 2448157834322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1106311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553190 + 553191.

It is an arithmetic number, because the mean of its divisors is an integer number (553191).

2^1106381 is an apocalyptic number.

It is an amenable number.

1106381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106381 is an equidigital number, since it uses as much as digits as its factorization.

1106381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1106381 is about 1051.8464716868. The cubic root of 1106381 is about 103.4272322572.

The spelling of 1106381 in words is "one million, one hundred six thousand, three hundred eighty-one".