141616021 has 4 divisors (see below), whose sum is σ = 141689772. Its totient is φ = 141542272.

The previous prime is 141615979. The next prime is 141616031. The reversal of 141616021 is 120616141.

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 62583921 + 79032100 = 7911^2 + 8890^2 .

It is a cyclic number.

It is not a de Polignac number, because 141616021 - 2⁷ = 141615893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141615983 and 141616001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141616031) 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 in 3 ways as a sum of consecutive naturals, for example, 33916 + ... + 37861.

It is an arithmetic number, because the mean of its divisors is an integer number (35422443).

Almost surely, 2^141616021 is an apocalyptic number.

It is an amenable number.

141616021 is a deficient number, since it is larger than the sum of its proper divisors (73751).

141616021 is an equidigital number, since it uses as much as digits as its factorization.

141616021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73750.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 141616021 is about 11900.2529805042. The cubic root of 141616021 is about 521.2396717317.

The spelling of 141616021 in words is "one hundred forty-one million, six hundred sixteen thousand, twenty-one".