1343342461 has 4 divisors (see below), whose sum is σ = 1379649052. Its totient is φ = 1307035872.

The previous prime is 1343342449. The next prime is 1343342471. The reversal of 1343342461 is 1642433431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1642433431 = 8761 ⋅187471.

It can be written as a sum of positive squares in 2 ways, for example, as 1272277561 + 71064900 = 35669^2 + 8430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343342461 - 2⁹ = 1343341949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343342401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18153240 + ... + 18153313.

It is an arithmetic number, because the mean of its divisors is an integer number (344912263).

Almost surely, 2^1343342461 is an apocalyptic number.

It is an amenable number.

1343342461 is a deficient number, since it is larger than the sum of its proper divisors (36306591).

1343342461 is an equidigital number, since it uses as much as digits as its factorization.

1343342461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36306590.

The product of its digits is 20736, while the sum is 31.

The square root of 1343342461 is about 36651.6365391779. The cubic root of 1343342461 is about 1103.3896709326.

Adding to 1343342461 its reverse (1642433431), we get a palindrome (2985775892).

The spelling of 1343342461 in words is "one billion, three hundred forty-three million, three hundred forty-two thousand, four hundred sixty-one".