1215567163 has 2 divisors, whose sum is σ = 1215567164. Its totient is φ = 1215567162.

The previous prime is 1215567091. The next prime is 1215567203. The reversal of 1215567163 is 3617655121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1215567163 - 2¹⁷ = 1215436091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1215567263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607783581 + 607783582.

It is an arithmetic number, because the mean of its divisors is an integer number (607783582).

Almost surely, 2^1215567163 is an apocalyptic number.

1215567163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215567163 is an equidigital number, since it uses as much as digits as its factorization.

1215567163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 1215567163 is about 34864.9847698231. The cubic root of 1215567163 is about 1067.2340015907.

The spelling of 1215567163 in words is "one billion, two hundred fifteen million, five hundred sixty-seven thousand, one hundred sixty-three".