163774738 has 8 divisors (see below), whose sum is σ = 248047488. Its totient is φ = 81092244.

The previous prime is 163774727. The next prime is 163774747. The reversal of 163774738 is 837477361.

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

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, 397306 + ... + 397717.

It is an arithmetic number, because the mean of its divisors is an integer number (31005936).

Almost surely, 2^163774738 is an apocalyptic number.

163774738 is a deficient number, since it is larger than the sum of its proper divisors (84272750).

163774738 is a wasteful number, since it uses less digits than its factorization.

163774738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795128.

The product of its digits is 592704, while the sum is 46.

The square root of 163774738 is about 12797.4504492106. The cubic root of 163774738 is about 547.1196393488.

It can be divided in two parts, 16377 and 4738, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 163774738 in words is "one hundred sixty-three million, seven hundred seventy-four thousand, seven hundred thirty-eight".