1031520229 has 2 divisors, whose sum is σ = 1031520230. Its totient is φ = 1031520228.

The previous prime is 1031520223. The next prime is 1031520263. The reversal of 1031520229 is 9220251301.

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., 1024640100 + 6880129 = 32010^2 + 2623^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031520229 - 2²⁷ = 897302501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031520223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515760114 + 515760115.

It is an arithmetic number, because the mean of its divisors is an integer number (515760115).

Almost surely, 2^1031520229 is an apocalyptic number.

It is an amenable number.

1031520229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031520229 is an equidigital number, since it uses as much as digits as its factorization.

1031520229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1031520229 is about 32117.2886308916. The cubic root of 1031520229 is about 1010.3982447414.

The spelling of 1031520229 in words is "one billion, thirty-one million, five hundred twenty thousand, two hundred twenty-nine".