161200707 has 4 divisors (see below), whose sum is σ = 214934280. Its totient is φ = 107467136.

The previous prime is 161200673. The next prime is 161200729. The reversal of 161200707 is 707002161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161200707 - 2⁸ = 161200451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161200607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26866782 + ... + 26866787.

It is an arithmetic number, because the mean of its divisors is an integer number (53733570).

Almost surely, 2^161200707 is an apocalyptic number.

161200707 is a deficient number, since it is larger than the sum of its proper divisors (53733573).

161200707 is an equidigital number, since it uses as much as digits as its factorization.

161200707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53733572.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 161200707 is about 12696.4840408674. The cubic root of 161200707 is about 544.2381488203.

Adding to 161200707 its reverse (707002161), we get a palindrome (868202868).

The spelling of 161200707 in words is "one hundred sixty-one million, two hundred thousand, seven hundred seven".