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1340525 = 5229432
BaseRepresentation
bin101000111010001101101
32112002212002
411013101231
5320344100
644422045
714252144
oct5072155
92462762
101340525
1183617a
12547925
1337c214
1426c75b
151b72d5
hex14746d

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).

21340525 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".

Divisors: 1 5 25 29 43 145 215 725 1075 1247 1849 6235 9245 31175 46225 53621 268105 1340525