4153440521 has 2 divisors, whose sum is σ = 4153440522. Its totient is φ = 4153440520.

The previous prime is 4153440503. The next prime is 4153440539. The reversal of 4153440521 is 1250443514.

4153440521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (4153440503) and next prime (4153440539).

It can be written as a sum of positive squares in only one way, i.e., 3983503225 + 169937296 = 63115^2 + 13036^2 .

It is a cyclic number.

It is not a de Polignac number, because 4153440521 - 2²² = 4149246217 is a prime.

It is a super-2 number, since 2×4153440521² = 34502136322969502882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4153440541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2076720260 + 2076720261.

It is an arithmetic number, because the mean of its divisors is an integer number (2076720261).

Almost surely, 2^4153440521 is an apocalyptic number.

It is an amenable number.

4153440521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4153440521 is an equidigital number, since it uses as much as digits as its factorization.

4153440521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4153440521 is about 64447.1917231465. The cubic root of 4153440521 is about 1607.4445425248. Note that the first 3 decimals are identical.

The spelling of 4153440521 in words is "four billion, one hundred fifty-three million, four hundred forty thousand, five hundred twenty-one".