1021552163 has 2 divisors, whose sum is σ = 1021552164. Its totient is φ = 1021552162.

The previous prime is 1021552123. The next prime is 1021552201. The reversal of 1021552163 is 3612551201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021552163 - 2¹² = 1021548067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021552123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510776081 + 510776082.

It is an arithmetic number, because the mean of its divisors is an integer number (510776082).

Almost surely, 2^1021552163 is an apocalyptic number.

1021552163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021552163 is an equidigital number, since it uses as much as digits as its factorization.

1021552163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1021552163 is about 31961.7296622070. The cubic root of 1021552163 is about 1007.1330529119.

The spelling of 1021552163 in words is "one billion, twenty-one million, five hundred fifty-two thousand, one hundred sixty-three".