1106491 has 2 divisors, whose sum is σ = 1106492. Its totient is φ = 1106490.

The previous prime is 1106489. The next prime is 1106509. The reversal of 1106491 is 1946011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1946011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1106491 - 2¹ = 1106489 is a prime.

Together with 1106489, it forms a pair of twin primes.

1106491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1106401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553245 + 553246.

It is an arithmetic number, because the mean of its divisors is an integer number (553246).

2^1106491 is an apocalyptic number.

1106491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106491 is an equidigital number, since it uses as much as digits as its factorization.

1106491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1106491 is about 1051.8987593870. The cubic root of 1106491 is about 103.4306598343.

The spelling of 1106491 in words is "one million, one hundred six thousand, four hundred ninety-one".