1630193 has 2 divisors, whose sum is σ = 1630194. Its totient is φ = 1630192.

The previous prime is 1630169. The next prime is 1630199. The reversal of 1630193 is 3910361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151329 + 478864 = 1073^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630193 - 2⁶ = 1630129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1630199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815096 + 815097.

It is an arithmetic number, because the mean of its divisors is an integer number (815097).

2^1630193 is an apocalyptic number.

It is an amenable number.

1630193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630193 is an equidigital number, since it uses as much as digits as its factorization.

1630193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 1630193 is about 1276.7901158765. The cubic root of 1630193 is about 117.6918369204.

The spelling of 1630193 in words is "one million, six hundred thirty thousand, one hundred ninety-three".