4165631 has 2 divisors, whose sum is σ = 4165632. Its totient is φ = 4165630.

The previous prime is 4165627. The next prime is 4165633. The reversal of 4165631 is 1365614.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4165631 - 2² = 4165627 is a prime.

It is a super-2 number, since 2×4165631² = 34704963256322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 4165633, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 4165631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4165633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2082815 + 2082816.

It is an arithmetic number, because the mean of its divisors is an integer number (2082816).

Almost surely, 2^4165631 is an apocalyptic number.

4165631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4165631 is an equidigital number, since it uses as much as digits as its factorization.

4165631 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4165631 is about 2040.9877510656. The cubic root of 4165631 is about 160.9015639939.

The spelling of 4165631 in words is "four million, one hundred sixty-five thousand, six hundred thirty-one".