1631552063 has 2 divisors, whose sum is σ = 1631552064. Its totient is φ = 1631552062.

The previous prime is 1631552057. The next prime is 1631552089. The reversal of 1631552063 is 3602551361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1631552063 - 2⁴ = 1631552047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1631552023) 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, 815776031 + 815776032.

It is an arithmetic number, because the mean of its divisors is an integer number (815776032).

Almost surely, 2^1631552063 is an apocalyptic number.

1631552063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631552063 is an equidigital number, since it uses as much as digits as its factorization.

1631552063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1631552063 is about 40392.4753264763. The cubic root of 1631552063 is about 1177.2453370170.

The spelling of 1631552063 in words is "one billion, six hundred thirty-one million, five hundred fifty-two thousand, sixty-three".