1331553029 has 2 divisors, whose sum is σ = 1331553030. Its totient is φ = 1331553028.

The previous prime is 1331552987. The next prime is 1331553043. The reversal of 1331553029 is 9203551331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1309716100 + 21836929 = 36190^2 + 4673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331553029 - 2²⁰ = 1330504453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331552986 and 1331553004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331553049) 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, 665776514 + 665776515.

It is an arithmetic number, because the mean of its divisors is an integer number (665776515).

Almost surely, 2^1331553029 is an apocalyptic number.

It is an amenable number.

1331553029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331553029 is an equidigital number, since it uses as much as digits as its factorization.

1331553029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 1331553029 is about 36490.4512030202. The cubic root of 1331553029 is about 1100.1523284913.

The spelling of 1331553029 in words is "one billion, three hundred thirty-one million, five hundred fifty-three thousand, twenty-nine".