1340525 has 18 divisors (see below), whose sum is σ = 1760490. Its totient is φ = 1011360.

The previous prime is 1340497. The next prime is 1340527. The reversal of 1340525 is 5250431.

It can be written as a sum of positive squares in 3 ways, for example, as 90601 + 1249924 = 301^2 + 1118^2 .

It is not a de Polignac number, because 1340525 - 2¹² = 1336429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340497 and 1340506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31154 + ... + 31196.

It is an arithmetic number, because the mean of its divisors is an integer number (97805).

2^1340525 is an apocalyptic number.

It is an amenable number.

1340525 is a deficient number, since it is larger than the sum of its proper divisors (419965).

1340525 is an equidigital number, since it uses as much as digits as its factorization.

1340525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1340525 is about 1157.8104335339. The cubic root of 1340525 is about 110.2617732434.

Adding to 1340525 its reverse (5250431), we get a palindrome (6590956).

The spelling of 1340525 in words is "one million, three hundred forty thousand, five hundred twenty-five".