630019129 has 2 divisors, whose sum is σ = 630019130. Its totient is φ = 630019128.

The previous prime is 630019097. The next prime is 630019153. The reversal of 630019129 is 921910036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424154025 + 205865104 = 20595^2 + 14348^2 .

It is a cyclic number.

It is not a de Polignac number, because 630019129 - 2⁵ = 630019097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 630019129.

It is not a weakly prime, because it can be changed into another prime (630019729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315009564 + 315009565.

It is an arithmetic number, because the mean of its divisors is an integer number (315009565).

Almost surely, 2^630019129 is an apocalyptic number.

It is an amenable number.

630019129 is a deficient number, since it is larger than the sum of its proper divisors (1).

630019129 is an equidigital number, since it uses as much as digits as its factorization.

630019129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 630019129 is about 25100.1818519309. The cubic root of 630019129 is about 857.2705646317.

The spelling of 630019129 in words is "six hundred thirty million, nineteen thousand, one hundred twenty-nine".