163073557 has 8 divisors (see below), whose sum is σ = 166060800. Its totient is φ = 160096560.

The previous prime is 163073551. The next prime is 163073563. The reversal of 163073557 is 755370361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (163073551) and next prime (163073563).

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 163073557 - 2¹⁵ = 163040789 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 (163073551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34308 + ... + 38770.

It is an arithmetic number, because the mean of its divisors is an integer number (20757600).

Almost surely, 2^163073557 is an apocalyptic number.

It is an amenable number.

163073557 is a deficient number, since it is larger than the sum of its proper divisors (2987243).

163073557 is an equidigital number, since it uses as much as digits as its factorization.

163073557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 66150, while the sum is 37.

The square root of 163073557 is about 12770.0257243280. The cubic root of 163073557 is about 546.3377143416.

The spelling of 163073557 in words is "one hundred sixty-three million, seventy-three thousand, five hundred fifty-seven".