630534121 has 32 divisors (see below), whose sum is σ = 783820800. Its totient is φ = 495496320.

The previous prime is 630534109. The next prime is 630534127. The reversal of 630534121 is 121435036.

It is a cyclic number.

It is not a de Polignac number, because 630534121 - 2⁷ = 630533993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630534127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388650 + ... + 390268.

It is an arithmetic number, because the mean of its divisors is an integer number (24494400).

Almost surely, 2^630534121 is an apocalyptic number.

It is an amenable number.

630534121 is a deficient number, since it is larger than the sum of its proper divisors (153286679).

630534121 is a wasteful number, since it uses less digits than its factorization.

630534121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 630534121 is about 25110.4384868126. The cubic root of 630534121 is about 857.5040851831.

Adding to 630534121 its reverse (121435036), we get a palindrome (751969157).

The spelling of 630534121 in words is "six hundred thirty million, five hundred thirty-four thousand, one hundred twenty-one".