161200265 has 8 divisors (see below), whose sum is σ = 193847040. Its totient is φ = 128689072.

The previous prime is 161200223. The next prime is 161200297. The reversal of 161200265 is 562002161.

161200265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161200265 - 2¹⁴ = 161183881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161200265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31259 + ... + 36048.

It is an arithmetic number, because the mean of its divisors is an integer number (24230880).

Almost surely, 2^161200265 is an apocalyptic number.

It is an amenable number.

161200265 is a deficient number, since it is larger than the sum of its proper divisors (32646775).

161200265 is an equidigital number, since it uses as much as digits as its factorization.

161200265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67791.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 161200265 is about 12696.4666344617. The cubic root of 161200265 is about 544.2376514000.

The spelling of 161200265 in words is "one hundred sixty-one million, two hundred thousand, two hundred sixty-five".