1125321 has 16 divisors (see below), whose sum is σ = 1603584. Its totient is φ = 700304.

The previous prime is 1125317. The next prime is 1125323. The reversal of 1125321 is 1235211.

It is not a de Polignac number, because 1125321 - 2² = 1125317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1125321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3070 + ... + 3416.

It is an arithmetic number, because the mean of its divisors is an integer number (100224).

2^1125321 is an apocalyptic number.

It is an amenable number.

1125321 is a deficient number, since it is larger than the sum of its proper divisors (478263).

1125321 is a wasteful number, since it uses less digits than its factorization.

1125321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 60, while the sum is 15.

The square root of 1125321 is about 1060.8114818383. The cubic root of 1125321 is about 104.0140821661.

The spelling of 1125321 in words is "one million, one hundred twenty-five thousand, three hundred twenty-one".