163491334 has 8 divisors (see below), whose sum is σ = 253147968. Its totient is φ = 79108680.

The previous prime is 163491331. The next prime is 163491347. The reversal of 163491334 is 433194361.

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 163491334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163491331) 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, 1318417 + ... + 1318540.

It is an arithmetic number, because the mean of its divisors is an integer number (31643496).

Almost surely, 2^163491334 is an apocalyptic number.

163491334 is a deficient number, since it is larger than the sum of its proper divisors (89656634).

163491334 is a wasteful number, since it uses less digits than its factorization.

163491334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636990.

The product of its digits is 23328, while the sum is 34.

The square root of 163491334 is about 12786.3729806384. The cubic root of 163491334 is about 546.8038694055.

The spelling of 163491334 in words is "one hundred sixty-three million, four hundred ninety-one thousand, three hundred thirty-four".