630155023 has 2 divisors, whose sum is σ = 630155024. Its totient is φ = 630155022.

The previous prime is 630154937. The next prime is 630155039. The reversal of 630155023 is 320551036.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 630155023 - 2²⁵ = 596600591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630155093) 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 as a sum of consecutive naturals, namely, 315077511 + 315077512.

It is an arithmetic number, because the mean of its divisors is an integer number (315077512).

Almost surely, 2^630155023 is an apocalyptic number.

630155023 is a deficient number, since it is larger than the sum of its proper divisors (1).

630155023 is an equidigital number, since it uses as much as digits as its factorization.

630155023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 630155023 is about 25102.8887381512. Note that the first 3 decimals coincide. The cubic root of 630155023 is about 857.3321974434.

The spelling of 630155023 in words is "six hundred thirty million, one hundred fifty-five thousand, twenty-three".