630514109 has 4 divisors (see below), whose sum is σ = 630798204. Its totient is φ = 630230016.

The previous prime is 630514103. The next prime is 630514121. The reversal of 630514109 is 901415036.

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 480574084 + 149940025 = 21922^2 + 12245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630514109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630514103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138692 + ... + 143165.

It is an arithmetic number, because the mean of its divisors is an integer number (157699551).

Almost surely, 2^630514109 is an apocalyptic number.

It is an amenable number.

630514109 is a deficient number, since it is larger than the sum of its proper divisors (284095).

630514109 is a wasteful number, since it uses less digits than its factorization.

630514109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284094.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 630514109 is about 25110.0400039506. The cubic root of 630514109 is about 857.4950132166.

The spelling of 630514109 in words is "six hundred thirty million, five hundred fourteen thousand, one hundred nine".