141521533 has 2 divisors, whose sum is σ = 141521534. Its totient is φ = 141521532.

The previous prime is 141521509. The next prime is 141521543. The reversal of 141521533 is 335125141.

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., 141205689 + 315844 = 11883^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 141521533 - 2¹³ = 141513341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 141521498 and 141521507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141521543) 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, 70760766 + 70760767.

It is an arithmetic number, because the mean of its divisors is an integer number (70760767).

Almost surely, 2^141521533 is an apocalyptic number.

It is an amenable number.

141521533 is a deficient number, since it is larger than the sum of its proper divisors (1).

141521533 is an equidigital number, since it uses as much as digits as its factorization.

141521533 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 141521533 is about 11896.2823184388. The cubic root of 141521533 is about 521.1237200396.

Adding to 141521533 its reverse (335125141), we get a palindrome (476646674).

The spelling of 141521533 in words is "one hundred forty-one million, five hundred twenty-one thousand, five hundred thirty-three".