635145523 has 2 divisors, whose sum is σ = 635145524. Its totient is φ = 635145522.

The previous prime is 635145503. The next prime is 635145527. The reversal of 635145523 is 325541536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 635145523 - 2¹⁷ = 635014451 is a prime.

It is not a weakly prime, because it can be changed into another prime (635145527) 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, 317572761 + 317572762.

It is an arithmetic number, because the mean of its divisors is an integer number (317572762).

Almost surely, 2^635145523 is an apocalyptic number.

635145523 is a deficient number, since it is larger than the sum of its proper divisors (1).

635145523 is an equidigital number, since it uses as much as digits as its factorization.

635145523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 34.

The square root of 635145523 is about 25202.0936233480. The cubic root of 635145523 is about 859.5894574647.

The spelling of 635145523 in words is "six hundred thirty-five million, one hundred forty-five thousand, five hundred twenty-three".