7214523653 has 4 divisors (see below), whose sum is σ = 7215510060. Its totient is φ = 7213537248.

The previous prime is 7214523647. The next prime is 7214523697. The reversal of 7214523653 is 3563254127.

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 5349752164 + 1864771489 = 73142^2 + 43183^2 .

It is a cyclic number.

It is not a de Polignac number, because 7214523653 - 2⁴ = 7214523637 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 (7214523553) 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, 482150 + ... + 496887.

It is an arithmetic number, because the mean of its divisors is an integer number (1803877515).

Almost surely, 2^7214523653 is an apocalyptic number.

It is an amenable number.

7214523653 is a deficient number, since it is larger than the sum of its proper divisors (986407).

7214523653 is an equidigital number, since it uses as much as digits as its factorization.

7214523653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986406.

The product of its digits is 151200, while the sum is 38.

The square root of 7214523653 is about 84938.3520737246. The cubic root of 7214523653 is about 1932.2762705804.

The spelling of 7214523653 in words is "seven billion, two hundred fourteen million, five hundred twenty-three thousand, six hundred fifty-three".