4661231 has 2 divisors, whose sum is σ = 4661232. Its totient is φ = 4661230.

The previous prime is 4661207. The next prime is 4661233. The reversal of 4661231 is 1321664.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4661231 is a prime.

It is a super-2 number, since 2×4661231² = 43454148870722, which contains 22 as substring.

Together with 4661233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4661197 and 4661206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4661233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2330615 + 2330616.

It is an arithmetic number, because the mean of its divisors is an integer number (2330616).

Almost surely, 2^4661231 is an apocalyptic number.

4661231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4661231 is an equidigital number, since it uses as much as digits as its factorization.

4661231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 4661231 is about 2158.9884205340. The cubic root of 4661231 is about 167.0450235376.

Adding to 4661231 its reverse (1321664), we get a palindrome (5982895).

The spelling of 4661231 in words is "four million, six hundred sixty-one thousand, two hundred thirty-one".