2043651161 has 8 divisors (see below), whose sum is σ = 2110280448. Its totient is φ = 1977066000.

The previous prime is 2043651151. The next prime is 2043651173. The reversal of 2043651161 is 1611563402.

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 2043651161 - 2¹⁰ = 2043650137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043651151) 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, 101471 + ... + 119931.

It is an arithmetic number, because the mean of its divisors is an integer number (263785056).

Almost surely, 2^2043651161 is an apocalyptic number.

It is an amenable number.

2043651161 is a deficient number, since it is larger than the sum of its proper divisors (66629287).

2043651161 is a wasteful number, since it uses less digits than its factorization.

2043651161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22063.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2043651161 is about 45206.7601250079. The cubic root of 2043651161 is about 1269.0213306763.

The spelling of 2043651161 in words is "two billion, forty-three million, six hundred fifty-one thousand, one hundred sixty-one".