4209054061 has 2 divisors, whose sum is σ = 4209054062. Its totient is φ = 4209054060.

The previous prime is 4209054053. The next prime is 4209054169. The reversal of 4209054061 is 1604509024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2690393161 + 1518660900 = 51869^2 + 38970^2 .

It is a cyclic number.

It is not a de Polignac number, because 4209054061 - 2³ = 4209054053 is a prime.

It is a super-2 number, since 2×4209054061² = 35432272176841183442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4209051061) 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, 2104527030 + 2104527031.

It is an arithmetic number, because the mean of its divisors is an integer number (2104527031).

Almost surely, 2^4209054061 is an apocalyptic number.

It is an amenable number.

4209054061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4209054061 is an equidigital number, since it uses as much as digits as its factorization.

4209054061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4209054061 is about 64877.2229754018. Note that the first 3 decimals coincide. The cubic root of 4209054061 is about 1614.5871854621.

The spelling of 4209054061 in words is "four billion, two hundred nine million, fifty-four thousand, sixty-one".