161010201 has 8 divisors (see below), whose sum is σ = 234196704. Its totient is φ = 97581920.

The previous prime is 161010181. The next prime is 161010217. The reversal of 161010201 is 102010161.

It is a happy number.

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 161010201 - 2⁵ = 161010169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161010221) 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, 2439516 + ... + 2439581.

It is an arithmetic number, because the mean of its divisors is an integer number (29274588).

Almost surely, 2^161010201 is an apocalyptic number.

161010201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161010201 is a deficient number, since it is larger than the sum of its proper divisors (73186503).

161010201 is a wasteful number, since it uses less digits than its factorization.

161010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879111.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 161010201 is about 12688.9795097951. The cubic root of 161010201 is about 544.0236718812.

Adding to 161010201 its reverse (102010161), we get a palindrome (263020362).

It can be divided in two parts, 1610 and 10201, that added together give a palindrome (11811).

The spelling of 161010201 in words is "one hundred sixty-one million, ten thousand, two hundred one".