630841153 has 2 divisors, whose sum is σ = 630841154. Its totient is φ = 630841152.

The previous prime is 630841087. The next prime is 630841163. The reversal of 630841153 is 351148036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558046129 + 72795024 = 23623^2 + 8532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630841153 is a prime.

It is not a weakly prime, because it can be changed into another prime (630841163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315420576 + 315420577.

It is an arithmetic number, because the mean of its divisors is an integer number (315420577).

Almost surely, 2^630841153 is an apocalyptic number.

It is an amenable number.

630841153 is a deficient number, since it is larger than the sum of its proper divisors (1).

630841153 is an equidigital number, since it uses as much as digits as its factorization.

630841153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 630841153 is about 25116.5513755372. The cubic root of 630841153 is about 857.6432468151.

Adding to 630841153 its reverse (351148036), we get a palindrome (981989189).

The spelling of 630841153 in words is "six hundred thirty million, eight hundred forty-one thousand, one hundred fifty-three".