161705934 has 24 divisors (see below), whose sum is σ = 377314392. Its totient is φ = 49755600.

The previous prime is 161705923. The next prime is 161705959. The reversal of 161705934 is 439507161.

161705934 is a `hidden beast` number, since 1 + 61 + 7 + 0 + 593 + 4 = 666.

It is a super-2 number, since 2×161705934² = 52297618181624712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 345292 + ... + 345759.

It is an arithmetic number, because the mean of its divisors is an integer number (15721433).

Almost surely, 2^161705934 is an apocalyptic number.

161705934 is an abundant number, since it is smaller than the sum of its proper divisors (215608458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161705934 is a wasteful number, since it uses less digits than its factorization.

161705934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691072 (or 691069 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 161705934 is about 12716.3648107468. The cubic root of 161705934 is about 544.8061302977.

The spelling of 161705934 in words is "one hundred sixty-one million, seven hundred five thousand, nine hundred thirty-four".