4145523653 has 4 divisors (see below), whose sum is σ = 4246634028. Its totient is φ = 4044413280.

The previous prime is 4145523637. The next prime is 4145523659. The reversal of 4145523653 is 3563255414.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2439668449 + 1705855204 = 49393^2 + 41302^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145523653 - 2⁴ = 4145523637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145523659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50555126 + ... + 50555207.

It is an arithmetic number, because the mean of its divisors is an integer number (1061658507).

Almost surely, 2^4145523653 is an apocalyptic number.

It is an amenable number.

4145523653 is a deficient number, since it is larger than the sum of its proper divisors (101110375).

4145523653 is a wasteful number, since it uses less digits than its factorization.

4145523653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101110374.

The product of its digits is 216000, while the sum is 38.

The square root of 4145523653 is about 64385.7410689665. The cubic root of 4145523653 is about 1606.4225768882.

The spelling of 4145523653 in words is "four billion, one hundred forty-five million, five hundred twenty-three thousand, six hundred fifty-three".