1341521 has 16 divisors (see below), whose sum is σ = 1534464. Its totient is φ = 1165824.

The previous prime is 1341493. The next prime is 1341523. The reversal of 1341521 is 1251431.

It is not a de Polignac number, because 1341521 - 2¹⁰ = 1340497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1341521.

It is not an unprimeable number, because it can be changed into a prime (1341523) 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, 18341 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (95904).

2^1341521 is an apocalyptic number.

It is an amenable number.

1341521 is a deficient number, since it is larger than the sum of its proper divisors (192943).

1341521 is a wasteful number, since it uses less digits than its factorization.

1341521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its digits is 120, while the sum is 17.

The square root of 1341521 is about 1158.2404758944. The cubic root of 1341521 is about 110.2890743726.

Adding to 1341521 its reverse (1251431), we get a palindrome (2592952).

The spelling of 1341521 in words is "one million, three hundred forty-one thousand, five hundred twenty-one".