630445101 has 16 divisors (see below), whose sum is σ = 987551040. Its totient is φ = 352696320.

The previous prime is 630445091. The next prime is 630445133. The reversal of 630445101 is 101544036.

630445101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630445101 - 2¹⁰ = 630444077 is a prime.

It is a super-2 number, since 2×630445101² = 794922050749800402, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630445601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734356 + ... + 735213.

It is an arithmetic number, because the mean of its divisors is an integer number (61721940).

Almost surely, 2^630445101 is an apocalyptic number.

It is an amenable number.

630445101 is a deficient number, since it is larger than the sum of its proper divisors (357105939).

630445101 is a wasteful number, since it uses less digits than its factorization.

630445101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469596.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 630445101 is about 25108.6658546407. The cubic root of 630445101 is about 857.4637286009.

Adding to 630445101 its reverse (101544036), we get a palindrome (731989137).

The spelling of 630445101 in words is "six hundred thirty million, four hundred forty-five thousand, one hundred one".