4520154521 has 2 divisors, whose sum is σ = 4520154522. Its totient is φ = 4520154520.

The previous prime is 4520154421. The next prime is 4520154523. The reversal of 4520154521 is 1254510254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4387075225 + 133079296 = 66235^2 + 11536^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520154521 - 2¹⁴ = 4520138137 is a prime.

Together with 4520154523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4520154523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260077260 + 2260077261.

It is an arithmetic number, because the mean of its divisors is an integer number (2260077261).

Almost surely, 2^4520154521 is an apocalyptic number.

It is an amenable number.

4520154521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520154521 is an equidigital number, since it uses as much as digits as its factorization.

4520154521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 4520154521 is about 67232.0944266948. The cubic root of 4520154521 is about 1653.4247228205.

Adding to 4520154521 its reverse (1254510254), we get a palindrome (5774664775).

The spelling of 4520154521 in words is "four billion, five hundred twenty million, one hundred fifty-four thousand, five hundred twenty-one".