161707 has 8 divisors (see below), whose sum is σ = 199136. Its totient is φ = 127872.

The previous prime is 161683. The next prime is 161717. The reversal of 161707 is 707161.

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

It is a cyclic number.

It is not a de Polignac number, because 161707 - 2¹⁵ = 128939 is a prime.

It is a super-2 number, since 2×161707² = 52298307698, which contains 22 as substring.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (161717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 979.

It is an arithmetic number, because the mean of its divisors is an integer number (24892).

2¹⁶¹⁷⁰⁷ is an apocalyptic number.

161707 is a deficient number, since it is larger than the sum of its proper divisors (37429).

161707 is a wasteful number, since it uses less digits than its factorization.

161707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 161707 is about 402.1280890463. The cubic root of 161707 is about 54.4807327455.

Adding to 161707 its reverse (707161), we get a palindrome (868868).

It can be divided in two parts, 161 and 707, that added together give a palindrome (868).

The spelling of 161707 in words is "one hundred sixty-one thousand, seven hundred seven".