163455897 has 8 divisors (see below), whose sum is σ = 237754080. Its totient is φ = 99064160.

The previous prime is 163455893. The next prime is 163455907. The reversal of 163455897 is 798554361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163455897 - 2² = 163455893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163455893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2476572 + ... + 2476637.

It is an arithmetic number, because the mean of its divisors is an integer number (29719260).

Almost surely, 2^163455897 is an apocalyptic number.

It is an amenable number.

163455897 is a deficient number, since it is larger than the sum of its proper divisors (74298183).

163455897 is a wasteful number, since it uses less digits than its factorization.

163455897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953223.

The product of its digits is 907200, while the sum is 48.

The square root of 163455897 is about 12784.9871724613. The cubic root of 163455897 is about 546.7643596887.

The spelling of 163455897 in words is "one hundred sixty-three million, four hundred fifty-five thousand, eight hundred ninety-seven".