141533521 has 2 divisors, whose sum is σ = 141533522. Its totient is φ = 141533520.

The previous prime is 141533453. The next prime is 141533537. The reversal of 141533521 is 125335141.

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., 140185600 + 1347921 = 11840^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 141533521 - 2⁷ = 141533393 is a prime.

It is not a weakly prime, because it can be changed into another prime (141533921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70766760 + 70766761.

It is an arithmetic number, because the mean of its divisors is an integer number (70766761).

Almost surely, 2^141533521 is an apocalyptic number.

It is an amenable number.

141533521 is a deficient number, since it is larger than the sum of its proper divisors (1).

141533521 is an equidigital number, since it uses as much as digits as its factorization.

141533521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 141533521 is about 11896.7861626575. The cubic root of 141533521 is about 521.1384340661.

Adding to 141533521 its reverse (125335141), we get a palindrome (266868662).

The spelling of 141533521 in words is "one hundred forty-one million, five hundred thirty-three thousand, five hundred twenty-one".