2132021 has 8 divisors (see below), whose sum is σ = 2286144. Its totient is φ = 1981120.

The previous prime is 2132003. The next prime is 2132023. The reversal of 2132021 is 1202312.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131993 and 2132011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 2166.

It is an arithmetic number, because the mean of its divisors is an integer number (285768).

2^2132021 is an apocalyptic number.

It is an amenable number.

2132021 is a deficient number, since it is larger than the sum of its proper divisors (154123).

2132021 is a wasteful number, since it uses less digits than its factorization.

2132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2132021 is about 1460.1441709639. The cubic root of 2132021 is about 128.7055157849.

Adding to 2132021 its reverse (1202312), we get a palindrome (3334333).

The spelling of 2132021 in words is "two million, one hundred thirty-two thousand, twenty-one".