1340353225 has 6 divisors (see below), whose sum is σ = 1662038030. Its totient is φ = 1072282560.

The previous prime is 1340353213. The next prime is 1340353241. The reversal of 1340353225 is 5223530431.

It can be written as a sum of positive squares in 3 ways, for example, as 2768896 + 1337584329 = 1664^2 + 36573^2 .

It is not a de Polignac number, because 1340353225 - 2⁵ = 1340353193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340353193 and 1340353202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26807040 + ... + 26807089.

Almost surely, 2^1340353225 is an apocalyptic number.

It is an amenable number.

1340353225 is a deficient number, since it is larger than the sum of its proper divisors (321684805).

1340353225 is an equidigital number, since it uses as much as digits as its factorization.

1340353225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53614139 (or 53614134 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 1340353225 is about 36610.8348033748. The cubic root of 1340353225 is about 1102.5706339089.

Adding to 1340353225 its reverse (5223530431), we get a palindrome (6563883656).

The spelling of 1340353225 in words is "one billion, three hundred forty million, three hundred fifty-three thousand, two hundred twenty-five".