4000161201 has 4 divisors (see below), whose sum is σ = 5333548272. Its totient is φ = 2666774132.

The previous prime is 4000161161. The next prime is 4000161293. The reversal of 4000161201 is 1021610004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4000161201 - 2⁷ = 4000161073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4000161401) 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, 666693531 + ... + 666693536.

It is an arithmetic number, because the mean of its divisors is an integer number (1333387068).

Almost surely, 2^4000161201 is an apocalyptic number.

It is an amenable number.

4000161201 is a deficient number, since it is larger than the sum of its proper divisors (1333387071).

4000161201 is a wasteful number, since it uses less digits than its factorization.

4000161201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333387070.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 4000161201 is about 63246.8275963309. The cubic root of 4000161201 is about 1587.4223759015.

Adding to 4000161201 its reverse (1021610004), we get a palindrome (5021771205).

The spelling of 4000161201 in words is "four billion, one hundred sixty-one thousand, two hundred one".