4291031 has 2 divisors, whose sum is σ = 4291032. Its totient is φ = 4291030.

The previous prime is 4290997. The next prime is 4291033. The reversal of 4291031 is 1301924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4291031 is a prime.

It is a super-2 number, since 2×4291031² = 36825894085922, which contains 22 as substring.

Together with 4291033, 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 = 4290994 and 4291012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4291033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2145515 + 2145516.

It is an arithmetic number, because the mean of its divisors is an integer number (2145516).

Almost surely, 2^4291031 is an apocalyptic number.

4291031 is a deficient number, since it is larger than the sum of its proper divisors (1).

4291031 is an equidigital number, since it uses as much as digits as its factorization.

4291031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4291031 is about 2071.4803885145. The cubic root of 4291031 is about 162.5001940826.

Adding to 4291031 its reverse (1301924), we get a palindrome (5592955).

The spelling of 4291031 in words is "four million, two hundred ninety-one thousand, thirty-one".