1141521 has 8 divisors (see below), whose sum is σ = 1557600. Its totient is φ = 743232.

The previous prime is 1141507. The next prime is 1141523. The reversal of 1141521 is 1251411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1141521 - 2⁹ = 1141009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1141521.

It is not an unprimeable number, because it can be changed into a prime (1141523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4296 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (194700).

2^1141521 is an apocalyptic number.

It is an amenable number.

1141521 is a deficient number, since it is larger than the sum of its proper divisors (416079).

1141521 is an equidigital number, since it uses as much as digits as its factorization.

1141521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8895.

The product of its digits is 40, while the sum is 15.

The square root of 1141521 is about 1068.4198612905. The cubic root of 1141521 is about 104.5108311995.

Adding to 1141521 its reverse (1251411), we get a palindrome (2392932).

The spelling of 1141521 in words is "one million, one hundred forty-one thousand, five hundred twenty-one".