630361451 has 2 divisors, whose sum is σ = 630361452. Its totient is φ = 630361450.

The previous prime is 630361441. The next prime is 630361453. The reversal of 630361451 is 154163036.

It is a happy number.

630361451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630361451 is a prime.

Together with 630361453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (630361453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315180725 + 315180726.

It is an arithmetic number, because the mean of its divisors is an integer number (315180726).

Almost surely, 2^630361451 is an apocalyptic number.

630361451 is a deficient number, since it is larger than the sum of its proper divisors (1).

630361451 is an equidigital number, since it uses as much as digits as its factorization.

630361451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 630361451 is about 25107.0000398295. Note that the first 4 decimals coincide. The cubic root of 630361451 is about 857.4258030076.

The spelling of 630361451 in words is "six hundred thirty million, three hundred sixty-one thousand, four hundred fifty-one".