4672181 has 2 divisors, whose sum is σ = 4672182. Its totient is φ = 4672180.

The previous prime is 4672177. The next prime is 4672189. The reversal of 4672181 is 1812764.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2669956 + 2002225 = 1634^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 4672181 - 2² = 4672177 is a prime.

It is a super-2 number, since 2×4672181² = 43658550593522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4672189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2336090 + 2336091.

It is an arithmetic number, because the mean of its divisors is an integer number (2336091).

Almost surely, 2^4672181 is an apocalyptic number.

It is an amenable number.

4672181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4672181 is an equidigital number, since it uses as much as digits as its factorization.

4672181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 4672181 is about 2161.5228428124. The cubic root of 4672181 is about 167.1757266755.

It can be divided in two parts, 46 and 72181, that added together give a palindrome (72227).

The spelling of 4672181 in words is "four million, six hundred seventy-two thousand, one hundred eighty-one".