2031229 has 2 divisors, whose sum is σ = 2031230. Its totient is φ = 2031228.

The previous prime is 2031223. The next prime is 2031251. The reversal of 2031229 is 9221302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1750329 + 280900 = 1323^2 + 530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015614 + 1015615.

It is an arithmetic number, because the mean of its divisors is an integer number (1015615).

2^2031229 is an apocalyptic number.

It is an amenable number.

2031229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031229 is an equidigital number, since it uses as much as digits as its factorization.

2031229 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 19.

The square root of 2031229 is about 1425.2119140675. The cubic root of 2031229 is about 126.6444890381.

The spelling of 2031229 in words is "two million, thirty-one thousand, two hundred twenty-nine".