141047521 has 4 divisors (see below), whose sum is σ = 149344452. Its totient is φ = 132750592.

The previous prime is 141047471. The next prime is 141047531. The reversal of 141047521 is 125740141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87684496 + 53363025 = 9364^2 + 7305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141047521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141047531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4148440 + ... + 4148473.

It is an arithmetic number, because the mean of its divisors is an integer number (37336113).

Almost surely, 2^141047521 is an apocalyptic number.

It is an amenable number.

141047521 is a deficient number, since it is larger than the sum of its proper divisors (8296931).

141047521 is an equidigital number, since it uses as much as digits as its factorization.

141047521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296930.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 141047521 is about 11876.3429135403. The cubic root of 141047521 is about 520.5412522598.

Adding to 141047521 its reverse (125740141), we get a palindrome (266787662).

The spelling of 141047521 in words is "one hundred forty-one million, forty-seven thousand, five hundred twenty-one".