2174145523 has 4 divisors (see below), whose sum is σ = 2371795128. Its totient is φ = 1976495920.

The previous prime is 2174145497. The next prime is 2174145529. The reversal of 2174145523 is 3255414712.

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 2174145523 - 2¹³ = 2174137331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2174145529) 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, 98824786 + ... + 98824807.

It is an arithmetic number, because the mean of its divisors is an integer number (592948782).

Almost surely, 2^2174145523 is an apocalyptic number.

2174145523 is a deficient number, since it is larger than the sum of its proper divisors (197649605).

2174145523 is a wasteful number, since it uses less digits than its factorization.

2174145523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197649604.

The product of its digits is 33600, while the sum is 34.

The square root of 2174145523 is about 46627.7334104929. The cubic root of 2174145523 is about 1295.4764917685.

The spelling of 2174145523 in words is "two billion, one hundred seventy-four million, one hundred forty-five thousand, five hundred twenty-three".