4132001921 has 4 divisors (see below), whose sum is σ = 4133071572. Its totient is φ = 4130932272.

The previous prime is 4132001917. The next prime is 4132001933. The reversal of 4132001921 is 1291002314.

4132001921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1034522896 + 3097479025 = 32164^2 + 55655^2 .

It is a cyclic number.

It is not a de Polignac number, because 4132001921 - 2² = 4132001917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4132001941) 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, 529010 + ... + 536763.

It is an arithmetic number, because the mean of its divisors is an integer number (1033267893).

Almost surely, 2^4132001921 is an apocalyptic number.

It is an amenable number.

4132001921 is a deficient number, since it is larger than the sum of its proper divisors (1069651).

4132001921 is a wasteful number, since it uses less digits than its factorization.

4132001921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069650.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4132001921 is about 64280.6496622428. The cubic root of 4132001921 is about 1604.6740824299.

The spelling of 4132001921 in words is "four billion, one hundred thirty-two million, one thousand, nine hundred twenty-one".