161754093 has 6 divisors (see below), whose sum is σ = 233644814. Its totient is φ = 107836056.

The previous prime is 161754079. The next prime is 161754097. The reversal of 161754093 is 390457161.

161754093 is a `hidden beast` number, since 16 + 17 + 540 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 82846404 + 78907689 = 9102^2 + 8883^2 .

It is not a de Polignac number, because 161754093 - 2¹⁰ = 161753069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161754097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8986330 + ... + 8986347.

Almost surely, 2^161754093 is an apocalyptic number.

It is an amenable number.

161754093 is a deficient number, since it is larger than the sum of its proper divisors (71890721).

161754093 is a wasteful number, since it uses less digits than its factorization.

161754093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972683 (or 17972680 counting only the distinct ones).

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

The square root of 161754093 is about 12718.2582533930. The cubic root of 161754093 is about 544.8602093567.

The spelling of 161754093 in words is "one hundred sixty-one million, seven hundred fifty-four thousand, ninety-three".