163005697 has 4 divisors (see below), whose sum is σ = 163031620. Its totient is φ = 162979776.

The previous prime is 163005691. The next prime is 163005743. The reversal of 163005697 is 796500361.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 146023056 + 16982641 = 12084^2 + 4121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163005697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163005691) 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, 3133 + ... + 18325.

It is an arithmetic number, because the mean of its divisors is an integer number (40757905).

Almost surely, 2^163005697 is an apocalyptic number.

It is an amenable number.

163005697 is a deficient number, since it is larger than the sum of its proper divisors (25923).

163005697 is a wasteful number, since it uses less digits than its factorization.

163005697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25922.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 163005697 is about 12767.3684445934. The cubic root of 163005697 is about 546.2619210988.

The spelling of 163005697 in words is "one hundred sixty-three million, five thousand, six hundred ninety-seven".