163345738 has 8 divisors (see below), whose sum is σ = 245207232. Its totient is φ = 81609996.

The previous prime is 163345733. The next prime is 163345759. The reversal of 163345738 is 837543361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 163345738.

It is not an unprimeable number, because it can be changed into a prime (163345733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28120 + ... + 33427.

It is an arithmetic number, because the mean of its divisors is an integer number (30650904).

Almost surely, 2^163345738 is an apocalyptic number.

163345738 is a deficient number, since it is larger than the sum of its proper divisors (81861494).

163345738 is a wasteful number, since it uses less digits than its factorization.

163345738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62876.

The product of its digits is 181440, while the sum is 40.

The square root of 163345738 is about 12780.6783075078. The cubic root of 163345738 is about 546.6415038157.

The spelling of 163345738 in words is "one hundred sixty-three million, three hundred forty-five thousand, seven hundred thirty-eight".