161394682 has 8 divisors (see below), whose sum is σ = 242227296. Its totient is φ = 80652252.

The previous prime is 161394661. The next prime is 161394697. The reversal of 161394682 is 286493161.

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

It is a super-2 number, since 2×161394682² = 52096486755762248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17878 + ... + 25345.

It is an arithmetic number, because the mean of its divisors is an integer number (30278412).

Almost surely, 2^161394682 is an apocalyptic number.

161394682 is a deficient number, since it is larger than the sum of its proper divisors (80832614).

161394682 is a wasteful number, since it uses less digits than its factorization.

161394682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45092.

The product of its digits is 62208, while the sum is 40.

The square root of 161394682 is about 12704.1206700818. The cubic root of 161394682 is about 544.4563577044.

The spelling of 161394682 in words is "one hundred sixty-one million, three hundred ninety-four thousand, six hundred eighty-two".