2141375621 has 16 divisors (see below), whose sum is σ = 2674267008. Its totient is φ = 1665792000.

The previous prime is 2141375611. The next prime is 2141375633. The reversal of 2141375621 is 1265731412.

It is a cyclic number.

It is not a de Polignac number, because 2141375621 - 2²⁶ = 2074266757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141375611) 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 15 ways as a sum of consecutive naturals, for example, 23141 + ... + 69413.

It is an arithmetic number, because the mean of its divisors is an integer number (167141688).

Almost surely, 2^2141375621 is an apocalyptic number.

It is an amenable number.

2141375621 is a deficient number, since it is larger than the sum of its proper divisors (532891387).

2141375621 is a wasteful number, since it uses less digits than its factorization.

2141375621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46892.

The product of its digits is 10080, while the sum is 32.

The square root of 2141375621 is about 46274.9999567801. Note that the first 4 decimals coincide. The cubic root of 2141375621 is about 1288.9348058324.

The spelling of 2141375621 in words is "two billion, one hundred forty-one million, three hundred seventy-five thousand, six hundred twenty-one".