4172513 has 2 divisors, whose sum is σ = 4172514. Its totient is φ = 4172512.

The previous prime is 4172489. The next prime is 4172521. The reversal of 4172513 is 3152714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2798929 + 1373584 = 1673^2 + 1172^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172513 - 2⁸ = 4172257 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4172573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086256 + 2086257.

It is an arithmetic number, because the mean of its divisors is an integer number (2086257).

Almost surely, 2^4172513 is an apocalyptic number.

It is an amenable number.

4172513 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172513 is an equidigital number, since it uses as much as digits as its factorization.

4172513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 23.

The square root of 4172513 is about 2042.6730036890. The cubic root of 4172513 is about 160.9901232319.

The spelling of 4172513 in words is "four million, one hundred seventy-two thousand, five hundred thirteen".