4215661141 has 2 divisors, whose sum is σ = 4215661142. Its totient is φ = 4215661140.

The previous prime is 4215661129. The next prime is 4215661169. The reversal of 4215661141 is 1411665124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2413658641 + 1802002500 = 49129^2 + 42450^2 .

It is a cyclic number.

It is not a de Polignac number, because 4215661141 - 2¹⁹ = 4215136853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4215661111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107830570 + 2107830571.

It is an arithmetic number, because the mean of its divisors is an integer number (2107830571).

Almost surely, 2^4215661141 is an apocalyptic number.

It is an amenable number.

4215661141 is a deficient number, since it is larger than the sum of its proper divisors (1).

4215661141 is an equidigital number, since it uses as much as digits as its factorization.

4215661141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 4215661141 is about 64928.1228821533. The cubic root of 4215661141 is about 1615.4315659810.

The spelling of 4215661141 in words is "four billion, two hundred fifteen million, six hundred sixty-one thousand, one hundred forty-one".