1328529541 has 2 divisors, whose sum is σ = 1328529542. Its totient is φ = 1328529540.

The previous prime is 1328529467. The next prime is 1328529547. The reversal of 1328529541 is 1459258231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1290964900 + 37564641 = 35930^2 + 6129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328529541 - 2⁹ = 1328529029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1328529494 and 1328529503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328529547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664264770 + 664264771.

It is an arithmetic number, because the mean of its divisors is an integer number (664264771).

Almost surely, 2^1328529541 is an apocalyptic number.

It is an amenable number.

1328529541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328529541 is an equidigital number, since it uses as much as digits as its factorization.

1328529541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 1328529541 is about 36448.9991769321. Note that the first 3 decimals coincide. The cubic root of 1328529541 is about 1099.3190112824.

The spelling of 1328529541 in words is "one billion, three hundred twenty-eight million, five hundred twenty-nine thousand, five hundred forty-one".