1132921 has 4 divisors (see below), whose sum is σ = 1159312. Its totient is φ = 1106532.

The previous prime is 1132919. The next prime is 1132927. The reversal of 1132921 is 1292311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1292311 = 227 ⋅5693.

It is a cyclic number.

It is not a de Polignac number, because 1132921 - 2¹ = 1132919 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1132927) 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, 13131 + ... + 13216.

It is an arithmetic number, because the mean of its divisors is an integer number (289828).

2^1132921 is an apocalyptic number.

It is an amenable number.

1132921 is a deficient number, since it is larger than the sum of its proper divisors (26391).

1132921 is an equidigital number, since it uses as much as digits as its factorization.

1132921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26390.

The product of its digits is 108, while the sum is 19.

The square root of 1132921 is about 1064.3876173650. The cubic root of 1132921 is about 104.2477144881.

The spelling of 1132921 in words is "one million, one hundred thirty-two thousand, nine hundred twenty-one".