163541545 has 4 divisors (see below), whose sum is σ = 196249860. Its totient is φ = 130833232.

The previous prime is 163541537. The next prime is 163541551. The reversal of 163541545 is 545145361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54819216 + 108722329 = 7404^2 + 10427^2 .

It is a cyclic number.

It is not a de Polignac number, because 163541545 - 2³ = 163541537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163541545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16354150 + ... + 16354159.

It is an arithmetic number, because the mean of its divisors is an integer number (49062465).

Almost surely, 2^163541545 is an apocalyptic number.

It is an amenable number.

163541545 is a deficient number, since it is larger than the sum of its proper divisors (32708315).

163541545 is an equidigital number, since it uses as much as digits as its factorization.

163541545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32708314.

The product of its digits is 36000, while the sum is 34.

The square root of 163541545 is about 12788.3362874144. The cubic root of 163541545 is about 546.8598412996.

The spelling of 163541545 in words is "one hundred sixty-three million, five hundred forty-one thousand, five hundred forty-five".