4154040521 has 2 divisors, whose sum is σ = 4154040522. Its totient is φ = 4154040520.

The previous prime is 4154040479. The next prime is 4154040551. The reversal of 4154040521 is 1250404514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4091393296 + 62647225 = 63964^2 + 7915^2 .

It is a cyclic number.

It is not a de Polignac number, because 4154040521 - 2²⁶ = 4086931657 is a prime.

It is not a weakly prime, because it can be changed into another prime (4154040551) 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 as a sum of consecutive naturals, namely, 2077020260 + 2077020261.

It is an arithmetic number, because the mean of its divisors is an integer number (2077020261).

Almost surely, 2^4154040521 is an apocalyptic number.

It is an amenable number.

4154040521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4154040521 is an equidigital number, since it uses as much as digits as its factorization.

4154040521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4154040521 is about 64451.8465290173. The cubic root of 4154040521 is about 1607.5219418344.

The spelling of 4154040521 in words is "four billion, one hundred fifty-four million, forty thousand, five hundred twenty-one".