141020521 has 8 divisors (see below), whose sum is σ = 150575040. Its totient is φ = 131751312.

The previous prime is 141020513. The next prime is 141020549. The reversal of 141020521 is 125020141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 141020521 - 2³ = 141020513 is a prime.

It is a super-3 number, since 3×141020521³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141020495 and 141020504.

It is not an unprimeable number, because it can be changed into a prime (141020501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70306 + ... + 72283.

It is an arithmetic number, because the mean of its divisors is an integer number (18821880).

Almost surely, 2^141020521 is an apocalyptic number.

It is an amenable number.

141020521 is a deficient number, since it is larger than the sum of its proper divisors (9554519).

141020521 is a wasteful number, since it uses less digits than its factorization.

141020521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142655.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 141020521 is about 11875.2061455791. The cubic root of 141020521 is about 520.5080352972.

Adding to 141020521 its reverse (125020141), we get a palindrome (266040662).

The spelling of 141020521 in words is "one hundred forty-one million, twenty thousand, five hundred twenty-one".