163045693 has 4 divisors (see below), whose sum is σ = 163172128. Its totient is φ = 162919260.

The previous prime is 163045681. The next prime is 163045697. The reversal of 163045693 is 396540361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396540361 = 7 ⋅56648623.

It is a cyclic number.

It is not a de Polignac number, because 163045693 - 2⁵ = 163045661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163045697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61263 + ... + 63868.

It is an arithmetic number, because the mean of its divisors is an integer number (40793032).

Almost surely, 2^163045693 is an apocalyptic number.

It is an amenable number.

163045693 is a deficient number, since it is larger than the sum of its proper divisors (126435).

163045693 is a wasteful number, since it uses less digits than its factorization.

163045693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126434.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 163045693 is about 12768.9346853996. The cubic root of 163045693 is about 546.3065954169.

The spelling of 163045693 in words is "one hundred sixty-three million, forty-five thousand, six hundred ninety-three".