1031222429 has 2 divisors, whose sum is σ = 1031222430. Its totient is φ = 1031222428.

The previous prime is 1031222417. The next prime is 1031222443. The reversal of 1031222429 is 9242221301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635292025 + 395930404 = 25205^2 + 19898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031222429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1031222398 and 1031222407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031222459) 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, 515611214 + 515611215.

It is an arithmetic number, because the mean of its divisors is an integer number (515611215).

Almost surely, 2^1031222429 is an apocalyptic number.

It is an amenable number.

1031222429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031222429 is an equidigital number, since it uses as much as digits as its factorization.

1031222429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1031222429 is about 32112.6521639057. The cubic root of 1031222429 is about 1010.3010013558.

The spelling of 1031222429 in words is "one billion, thirty-one million, two hundred twenty-two thousand, four hundred twenty-nine".