630120241 has 4 divisors (see below), whose sum is σ = 631990372. Its totient is φ = 628250112.

The previous prime is 630120223. The next prime is 630120247. The reversal of 630120241 is 142021036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101304225 + 528816016 = 10065^2 + 22996^2 .

It is a cyclic number.

It is not a de Polignac number, because 630120241 - 2⁵ = 630120209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630120247) 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 3 ways as a sum of consecutive naturals, for example, 934560 + ... + 935233.

It is an arithmetic number, because the mean of its divisors is an integer number (157997593).

Almost surely, 2^630120241 is an apocalyptic number.

It is an amenable number.

630120241 is a deficient number, since it is larger than the sum of its proper divisors (1870131).

630120241 is a wasteful number, since it uses less digits than its factorization.

630120241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870130.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 630120241 is about 25102.1959397978. The cubic root of 630120241 is about 857.3164234004.

Adding to 630120241 its reverse (142021036), we get a palindrome (772141277).

The spelling of 630120241 in words is "six hundred thirty million, one hundred twenty thousand, two hundred forty-one".