163212445 has 16 divisors (see below), whose sum is σ = 216240192. Its totient is φ = 117266560.

The previous prime is 163212433. The next prime is 163212449. The reversal of 163212445 is 544212361.

It is not a de Polignac number, because 163212445 - 2⁷ = 163212317 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 (163212449) 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, 13312 + ... + 22441.

It is an arithmetic number, because the mean of its divisors is an integer number (13515012).

Almost surely, 2^163212445 is an apocalyptic number.

It is an amenable number.

163212445 is a deficient number, since it is larger than the sum of its proper divisors (53027747).

163212445 is a wasteful number, since it uses less digits than its factorization.

163212445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35852.

The product of its digits is 5760, while the sum is 28.

The square root of 163212445 is about 12775.4626139330. The cubic root of 163212445 is about 546.4927736536.

The spelling of 163212445 in words is "one hundred sixty-three million, two hundred twelve thousand, four hundred forty-five".