630160609 has 9 divisors (see below), whose sum is σ = 682716819. Its totient is φ = 581385480.

The previous prime is 630160567. The next prime is 630160621. The reversal of 630160609 is 906061036.

The square root of 630160609 is 25103.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 93219025 + 536941584 = 9655^2 + 23172^2 .

It is not a de Polignac number, because 630160609 - 2²³ = 621772001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630160649) 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 8 ways as a sum of consecutive naturals, for example, 325374 + ... + 327304.

Almost surely, 2^630160609 is an apocalyptic number.

630160609 is the 25103-rd square number.

630160609 is the 12552-nd centered octagonal number.

It is an amenable number.

630160609 is a deficient number, since it is larger than the sum of its proper divisors (52556210).

630160609 is an frugal number, since it uses more digits than its factorization.

630160609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888 (or 1944 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The cubic root of 630160609 is about 857.3347307055.

The spelling of 630160609 in words is "six hundred thirty million, one hundred sixty thousand, six hundred nine".