143215663 has 2 divisors, whose sum is σ = 143215664. Its totient is φ = 143215662.

The previous prime is 143215621. The next prime is 143215759. The reversal of 143215663 is 366512341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143215663 - 2²¹ = 141118511 is a prime.

It is a super-2 number, since 2×143215663² = 41021452257059138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143215603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71607831 + 71607832.

It is an arithmetic number, because the mean of its divisors is an integer number (71607832).

Almost surely, 2^143215663 is an apocalyptic number.

143215663 is a deficient number, since it is larger than the sum of its proper divisors (1).

143215663 is an equidigital number, since it uses as much as digits as its factorization.

143215663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 143215663 is about 11967.2746688626. The cubic root of 143215663 is about 523.1949048542.

The spelling of 143215663 in words is "one hundred forty-three million, two hundred fifteen thousand, six hundred sixty-three".