493775129 has 2 divisors, whose sum is σ = 493775130. Its totient is φ = 493775128.

The previous prime is 493775077. The next prime is 493775131. The reversal of 493775129 is 921577394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481363600 + 12411529 = 21940^2 + 3523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493775129 is a prime.

Together with 493775131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (493775179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246887564 + 246887565.

It is an arithmetic number, because the mean of its divisors is an integer number (246887565).

Almost surely, 2^493775129 is an apocalyptic number.

It is an amenable number.

493775129 is a deficient number, since it is larger than the sum of its proper divisors (1).

493775129 is an equidigital number, since it uses as much as digits as its factorization.

493775129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 47.

The square root of 493775129 is about 22221.0514827719. The cubic root of 493775129 is about 790.3929727853.

The spelling of 493775129 in words is "four hundred ninety-three million, seven hundred seventy-five thousand, one hundred twenty-nine".