163161043 has 4 divisors (see below), whose sum is σ = 163366560. Its totient is φ = 162955528.

The previous prime is 163161023. The next prime is 163161073. The reversal of 163161043 is 340161361.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 163161043 - 2²¹ = 161063891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163160999 and 163161017.

It is not an unprimeable number, because it can be changed into a prime (163161023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101563 + ... + 103156.

It is an arithmetic number, because the mean of its divisors is an integer number (40841640).

Almost surely, 2^163161043 is an apocalyptic number.

163161043 is a deficient number, since it is larger than the sum of its proper divisors (205517).

163161043 is an equidigital number, since it uses as much as digits as its factorization.

163161043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205516.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 163161043 is about 12773.4507084030. The cubic root of 163161043 is about 546.4353969606.

The spelling of 163161043 in words is "one hundred sixty-three million, one hundred sixty-one thousand, forty-three".