163073145 has 16 divisors (see below), whose sum is σ = 261077760. Its totient is φ = 86918784.

The previous prime is 163073111. The next prime is 163073153. The reversal of 163073145 is 541370361.

163073145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163073145 - 2⁶ = 163073081 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39541 + ... + 43469.

It is an arithmetic number, because the mean of its divisors is an integer number (16317360).

Almost surely, 2^163073145 is an apocalyptic number.

163073145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163073145 is a deficient number, since it is larger than the sum of its proper divisors (98004615).

163073145 is a wasteful number, since it uses less digits than its factorization.

163073145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 163073145 is about 12770.0095927920. The cubic root of 163073145 is about 546.3372542398.

The spelling of 163073145 in words is "one hundred sixty-three million, seventy-three thousand, one hundred forty-five".