2132921 has 24 divisors (see below), whose sum is σ = 2736000. Its totient is φ = 1651104.

The previous prime is 2132903. The next prime is 2132941. The reversal of 2132921 is 1292312.

It is not a de Polignac number, because 2132921 - 2⁶ = 2132857 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2132893 and 2132902.

It is not an unprimeable number, because it can be changed into a prime (2132941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26960 + ... + 27038.

It is an arithmetic number, because the mean of its divisors is an integer number (114000).

2^2132921 is an apocalyptic number.

It is an amenable number.

2132921 is a deficient number, since it is larger than the sum of its proper divisors (603079).

2132921 is a wasteful number, since it uses less digits than its factorization.

2132921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 134 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 2132921 is about 1460.4523271918. The cubic root of 2132921 is about 128.7236235910.

The spelling of 2132921 in words is "two million, one hundred thirty-two thousand, nine hundred twenty-one".