163371494 has 16 divisors (see below), whose sum is σ = 287899920. Its totient is φ = 68547360.

The previous prime is 163371487. The next prime is 163371499. The reversal of 163371494 is 494173361.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163371499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285329 + ... + 285900.

It is an arithmetic number, because the mean of its divisors is an integer number (17993745).

Almost surely, 2^163371494 is an apocalyptic number.

163371494 is a deficient number, since it is larger than the sum of its proper divisors (124528426).

163371494 is a wasteful number, since it uses less digits than its factorization.

163371494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571255.

The product of its digits is 54432, while the sum is 38.

The square root of 163371494 is about 12781.6858825430. The cubic root of 163371494 is about 546.6702333861.

The spelling of 163371494 in words is "one hundred sixty-three million, three hundred seventy-one thousand, four hundred ninety-four".