630101 has 2 divisors, whose sum is σ = 630102. Its totient is φ = 630100.

The previous prime is 630067. The next prime is 630107. The reversal of 630101 is 101036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555025 + 75076 = 745^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 630101 - 2¹⁸ = 367957 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

630101 is a modest number, since divided by 101 gives 63 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315050 + 315051.

It is an arithmetic number, because the mean of its divisors is an integer number (315051).

2⁶³⁰¹⁰¹ is an apocalyptic number.

It is an amenable number.

630101 is a deficient number, since it is larger than the sum of its proper divisors (1).

630101 is an equidigital number, since it uses as much as digits as its factorization.

630101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 630101 is about 793.7890147892. The cubic root of 630101 is about 85.7307697133.

Adding to 630101 its reverse (101036), we get a palindrome (731137).

The spelling of 630101 in words is "six hundred thirty thousand, one hundred one".