2132421 has 8 divisors (see below), whose sum is σ = 2920224. Its totient is φ = 1383120.

The previous prime is 2132419. The next prime is 2132461. The reversal of 2132421 is 1242312.

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

It is not a de Polignac number, because 2132421 - 2¹ = 2132419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2132421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9495 + ... + 9716.

It is an arithmetic number, because the mean of its divisors is an integer number (365028).

2^2132421 is an apocalyptic number.

It is an amenable number.

2132421 is a deficient number, since it is larger than the sum of its proper divisors (787803).

2132421 is a wasteful number, since it uses less digits than its factorization.

2132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251.

The product of its digits is 96, while the sum is 15.

The square root of 2132421 is about 1460.2811373157. The cubic root of 2132421 is about 128.7135643277.

Adding to 2132421 its reverse (1242312), we get a palindrome (3374733).

The spelling of 2132421 in words is "two million, one hundred thirty-two thousand, four hundred twenty-one".