1149321 has 4 divisors (see below), whose sum is σ = 1532432. Its totient is φ = 766212.

The previous prime is 1149307. The next prime is 1149341. The reversal of 1149321 is 1239411.

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.

It is not a de Polignac number, because 1149321 - 2⁷ = 1149193 is a prime.

It is a super-3 number, since 3×1149321³ = 4554547973335209483, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is a Duffinian number.

1149321 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1149341) 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, 191551 + ... + 191556.

It is an arithmetic number, because the mean of its divisors is an integer number (383108).

2^1149321 is an apocalyptic number.

It is an amenable number.

1149321 is a deficient number, since it is larger than the sum of its proper divisors (383111).

1149321 is an equidigital number, since it uses as much as digits as its factorization.

1149321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383110.

The product of its digits is 216, while the sum is 21.

The square root of 1149321 is about 1072.0638973494. The cubic root of 1149321 is about 104.7483315125.

The spelling of 1149321 in words is "one million, one hundred forty-nine thousand, three hundred twenty-one".