630380173 has 2 divisors, whose sum is σ = 630380174. Its totient is φ = 630380172.

The previous prime is 630380167. The next prime is 630380189. The reversal of 630380173 is 371083036.

630380173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369331524 + 261048649 = 19218^2 + 16157^2 .

It is a cyclic number.

It is not a de Polignac number, because 630380173 - 2⁹ = 630379661 is a prime.

It is equal to p_32826118 and since 630380173 and 32826118 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630380143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315190086 + 315190087.

It is an arithmetic number, because the mean of its divisors is an integer number (315190087).

Almost surely, 2^630380173 is an apocalyptic number.

It is an amenable number.

630380173 is a deficient number, since it is larger than the sum of its proper divisors (1).

630380173 is an equidigital number, since it uses as much as digits as its factorization.

630380173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 630380173 is about 25107.3728812873. The cubic root of 630380173 is about 857.4342915591.

The spelling of 630380173 in words is "six hundred thirty million, three hundred eighty thousand, one hundred seventy-three".