106523 has 4 divisors (see below), whose sum is σ = 109440. Its totient is φ = 103608.

The previous prime is 106501. The next prime is 106531. The reversal of 106523 is 325601.

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

It is a cyclic number.

It is not a de Polignac number, because 106523 - 2¹⁰ = 105499 is a prime.

It is a super-2 number, since 2×106523² = 22694299058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (27360).

2¹⁰⁶⁵²³ is an apocalyptic number.

106523 is a deficient number, since it is larger than the sum of its proper divisors (2917).

106523 is an equidigital number, since it uses as much as digits as its factorization.

106523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 106523 is about 326.3786144955. The cubic root of 106523 is about 47.4039425350.

The spelling of 106523 in words is "one hundred six thousand, five hundred twenty-three".