214105523 has 4 divisors (see below), whose sum is σ = 215387760. Its totient is φ = 212823288.

The previous prime is 214105517. The next prime is 214105601. The reversal of 214105523 is 325501412.

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 214105523 - 2¹⁸ = 213843379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244105523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640868 + ... + 641201.

It is an arithmetic number, because the mean of its divisors is an integer number (53846940).

Almost surely, 2^214105523 is an apocalyptic number.

214105523 is a deficient number, since it is larger than the sum of its proper divisors (1282237).

214105523 is a wasteful number, since it uses less digits than its factorization.

214105523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282236.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 214105523 is about 14632.3450957118. The cubic root of 214105523 is about 598.2407011173.

Adding to 214105523 its reverse (325501412), we get a palindrome (539606935).

The spelling of 214105523 in words is "two hundred fourteen million, one hundred five thousand, five hundred twenty-three".