630267193 has 2 divisors, whose sum is σ = 630267194. Its totient is φ = 630267192.

The previous prime is 630267167. The next prime is 630267203. The reversal of 630267193 is 391762036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458473744 + 171793449 = 21412^2 + 13107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630267193 is a prime.

It is not a weakly prime, because it can be changed into another prime (630267493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315133596 + 315133597.

It is an arithmetic number, because the mean of its divisors is an integer number (315133597).

Almost surely, 2^630267193 is an apocalyptic number.

It is an amenable number.

630267193 is a deficient number, since it is larger than the sum of its proper divisors (1).

630267193 is an equidigital number, since it uses as much as digits as its factorization.

630267193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 630267193 is about 25105.1228437544. The cubic root of 630267193 is about 857.3830638935.

The spelling of 630267193 in words is "six hundred thirty million, two hundred sixty-seven thousand, one hundred ninety-three".