4134172661 has 2 divisors, whose sum is σ = 4134172662. Its totient is φ = 4134172660.

The previous prime is 4134172643. The next prime is 4134172667. The reversal of 4134172661 is 1662714314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2992746436 + 1141426225 = 54706^2 + 33785^2 .

It is a cyclic number.

It is not a de Polignac number, because 4134172661 - 2⁶ = 4134172597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4134172667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067086330 + 2067086331.

It is an arithmetic number, because the mean of its divisors is an integer number (2067086331).

Almost surely, 2^4134172661 is an apocalyptic number.

It is an amenable number.

4134172661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4134172661 is an equidigital number, since it uses as much as digits as its factorization.

4134172661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 4134172661 is about 64297.5323087908. The cubic root of 4134172661 is about 1604.9550374791.

Adding to 4134172661 its reverse (1662714314), we get a palindrome (5796886975).

The spelling of 4134172661 in words is "four billion, one hundred thirty-four million, one hundred seventy-two thousand, six hundred sixty-one".