161073117 has 40 divisors (see below), whose sum is σ = 259269120. Its totient is φ = 99364320.

The previous prime is 161073109. The next prime is 161073119. The reversal of 161073117 is 711370161.

161073117 is a `hidden beast` number, since 1 + 610 + 7 + 31 + 17 = 666.

It is not a de Polignac number, because 161073117 - 2³ = 161073109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161073119) 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 39 ways as a sum of consecutive naturals, for example, 56359 + ... + 59147.

It is an arithmetic number, because the mean of its divisors is an integer number (6481728).

Almost surely, 2^161073117 is an apocalyptic number.

It is an amenable number.

161073117 is a deficient number, since it is larger than the sum of its proper divisors (98196003).

161073117 is a wasteful number, since it uses less digits than its factorization.

161073117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 161073117 is about 12691.4584268318. The cubic root of 161073117 is about 544.0945231602.

The spelling of 161073117 in words is "one hundred sixty-one million, seventy-three thousand, one hundred seventeen".