163553073 has 16 divisors (see below), whose sum is σ = 231304896. Its totient is φ = 102440960.

The previous prime is 163553057. The next prime is 163553081. The reversal of 163553073 is 370355361.

It is a cyclic number.

It is not a de Polignac number, because 163553073 - 2⁴ = 163553057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163553053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30190 + ... + 35192.

It is an arithmetic number, because the mean of its divisors is an integer number (14456556).

Almost surely, 2^163553073 is an apocalyptic number.

It is an amenable number.

163553073 is a deficient number, since it is larger than the sum of its proper divisors (67751823).

163553073 is a wasteful number, since it uses less digits than its factorization.

163553073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664.

The product of its (nonzero) digits is 28350, while the sum is 33.

The square root of 163553073 is about 12788.7870026832. The cubic root of 163553073 is about 546.8726903326.

The spelling of 163553073 in words is "one hundred sixty-three million, five hundred fifty-three thousand, seventy-three".