6435161 has 4 divisors (see below), whose sum is σ = 6478500. Its totient is φ = 6391824.

The previous prime is 6435157. The next prime is 6435173. The reversal of 6435161 is 1615346.

6435161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 6031936 = 635^2 + 2456^2 .

It is a cyclic number.

It is not a de Polignac number, because 6435161 - 2² = 6435157 is a prime.

It is a super-2 number, since 2×6435161² = 82822594191842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6435161.

It is not an unprimeable number, because it can be changed into a prime (6438161) 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, 21446 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (1619625).

Almost surely, 2^6435161 is an apocalyptic number.

It is an amenable number.

6435161 is a deficient number, since it is larger than the sum of its proper divisors (43339).

6435161 is a wasteful number, since it uses less digits than its factorization.

6435161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43338.

The product of its digits is 2160, while the sum is 26.

The square root of 6435161 is about 2536.7619123599. The cubic root of 6435161 is about 186.0029386363.

The spelling of 6435161 in words is "six million, four hundred thirty-five thousand, one hundred sixty-one".