1341256465 has 4 divisors (see below), whose sum is σ = 1609507764. Its totient is φ = 1073005168.

The previous prime is 1341256459. The next prime is 1341256537. The reversal of 1341256465 is 5646521431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 332114176 + 1009142289 = 18224^2 + 31767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341256465 - 2³ = 1341256457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134125642 + ... + 134125651.

It is an arithmetic number, because the mean of its divisors is an integer number (402376941).

Almost surely, 2^1341256465 is an apocalyptic number.

It is an amenable number.

1341256465 is a deficient number, since it is larger than the sum of its proper divisors (268251299).

1341256465 is an equidigital number, since it uses as much as digits as its factorization.

1341256465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268251298.

The product of its digits is 86400, while the sum is 37.

The square root of 1341256465 is about 36623.1684183660. The cubic root of 1341256465 is about 1102.8182458222.

Adding to 1341256465 its reverse (5646521431), we get a palindrome (6987777896).

The spelling of 1341256465 in words is "one billion, three hundred forty-one million, two hundred fifty-six thousand, four hundred sixty-five".