1630410641 has 2 divisors, whose sum is σ = 1630410642. Its totient is φ = 1630410640.

The previous prime is 1630410601. The next prime is 1630410671. The reversal of 1630410641 is 1460140361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1257766225 + 372644416 = 35465^2 + 19304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630410641 - 2¹⁸ = 1630148497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630410641.

It is not a weakly prime, because it can be changed into another prime (1630410601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815205320 + 815205321.

It is an arithmetic number, because the mean of its divisors is an integer number (815205321).

Almost surely, 2^1630410641 is an apocalyptic number.

It is an amenable number.

1630410641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630410641 is an equidigital number, since it uses as much as digits as its factorization.

1630410641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1630410641 is about 40378.3437129360. The cubic root of 1630410641 is about 1176.9707422033.

The spelling of 1630410641 in words is "one billion, six hundred thirty million, four hundred ten thousand, six hundred forty-one".