163422745 has 4 divisors (see below), whose sum is σ = 196107300. Its totient is φ = 130738192.

The previous prime is 163422739. The next prime is 163422757. The reversal of 163422745 is 547224361.

163422745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46090521 + 117332224 = 6789^2 + 10832^2 .

It is a cyclic number.

It is not a de Polignac number, because 163422745 - 2¹³ = 163414553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163422745.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16342270 + ... + 16342279.

It is an arithmetic number, because the mean of its divisors is an integer number (49026825).

Almost surely, 2^163422745 is an apocalyptic number.

It is an amenable number.

163422745 is a deficient number, since it is larger than the sum of its proper divisors (32684555).

163422745 is an equidigital number, since it uses as much as digits as its factorization.

163422745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32684554.

The product of its digits is 40320, while the sum is 34.

The square root of 163422745 is about 12783.6905860553. The cubic root of 163422745 is about 546.7273924130.

The spelling of 163422745 in words is "one hundred sixty-three million, four hundred twenty-two thousand, seven hundred forty-five".