591106 has 4 divisors (see below), whose sum is σ = 886662. Its totient is φ = 295552.

The previous prime is 591091. The next prime is 591113. The reversal of 591106 is 601195.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 42025 = 741^2 + 205^2 .

It is a plaindrome in base 14.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147775 + ... + 147778.

2⁵⁹¹¹⁰⁶ is an apocalyptic number.

591106 is a deficient number, since it is larger than the sum of its proper divisors (295556).

591106 is a wasteful number, since it uses less digits than its factorization.

591106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295555.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 591106 is about 768.8341823827. The cubic root of 591106 is about 83.9244407461.

The spelling of 591106 in words is "five hundred ninety-one thousand, one hundred six".