141021021 has 8 divisors (see below), whose sum is σ = 197924320. Its totient is φ = 89065872.

The previous prime is 141021019. The next prime is 141021031. The reversal of 141021021 is 120120141.

It is a happy number.

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

It is not a de Polignac number, because 141021021 - 2¹ = 141021019 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 141020988 and 141021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141021031) 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 in 7 ways as a sum of consecutive naturals, for example, 1236970 + ... + 1237083.

It is an arithmetic number, because the mean of its divisors is an integer number (24740540).

Almost surely, 2^141021021 is an apocalyptic number.

It is an amenable number.

141021021 is a deficient number, since it is larger than the sum of its proper divisors (56903299).

141021021 is a wasteful number, since it uses less digits than its factorization.

141021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474075.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 141021021 is about 11875.2271978266. The cubic root of 141021021 is about 520.5086504647.

Adding to 141021021 its reverse (120120141), we get a palindrome (261141162).

The spelling of 141021021 in words is "one hundred forty-one million, twenty-one thousand, twenty-one".