634518041 has 2 divisors, whose sum is σ = 634518042. Its totient is φ = 634518040.

The previous prime is 634518029. The next prime is 634518107. The reversal of 634518041 is 140815436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 619810816 + 14707225 = 24896^2 + 3835^2 .

It is a cyclic number.

It is not a de Polignac number, because 634518041 - 2¹⁴ = 634501657 is a prime.

It is a super-2 number, since 2×634518041² = 805226288708955362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634517989 and 634518007.

It is not a weakly prime, because it can be changed into another prime (634518011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317259020 + 317259021.

It is an arithmetic number, because the mean of its divisors is an integer number (317259021).

Almost surely, 2^634518041 is an apocalyptic number.

It is an amenable number.

634518041 is a deficient number, since it is larger than the sum of its proper divisors (1).

634518041 is an equidigital number, since it uses as much as digits as its factorization.

634518041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 634518041 is about 25189.6415417131. The cubic root of 634518041 is about 859.3062915796.

The spelling of 634518041 in words is "six hundred thirty-four million, five hundred eighteen thousand, forty-one".