1150321 has 4 divisors (see below), whose sum is σ = 1155492. Its totient is φ = 1145152.

The previous prime is 1150309. The next prime is 1150349. The reversal of 1150321 is 1230511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1230511 = 17 ⋅72383.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 790321 = 600^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150321 - 2¹³ = 1142129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150301) 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, 2236 + ... + 2701.

It is an arithmetic number, because the mean of its divisors is an integer number (288873).

2^1150321 is an apocalyptic number.

It is an amenable number.

1150321 is a deficient number, since it is larger than the sum of its proper divisors (5171).

1150321 is an equidigital number, since it uses as much as digits as its factorization.

1150321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1150321 is about 1072.5301860554. The cubic root of 1150321 is about 104.7787024783.

Adding to 1150321 its reverse (1230511), we get a palindrome (2380832).

The spelling of 1150321 in words is "one million, one hundred fifty thousand, three hundred twenty-one".