163532543 has 2 divisors, whose sum is σ = 163532544. Its totient is φ = 163532542.

The previous prime is 163532539. The next prime is 163532557. The reversal of 163532543 is 345235361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163532543 - 2² = 163532539 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163532513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81766271 + 81766272.

It is an arithmetic number, because the mean of its divisors is an integer number (81766272).

Almost surely, 2^163532543 is an apocalyptic number.

163532543 is a deficient number, since it is larger than the sum of its proper divisors (1).

163532543 is an equidigital number, since it uses as much as digits as its factorization.

163532543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 32.

The square root of 163532543 is about 12787.9843212290. The cubic root of 163532543 is about 546.8498073097.

The spelling of 163532543 in words is "one hundred sixty-three million, five hundred thirty-two thousand, five hundred forty-three".