1343878541 has 4 divisors (see below), whose sum is σ = 1346145372. Its totient is φ = 1341611712.

The previous prime is 1343878537. The next prime is 1343878561. The reversal of 1343878541 is 1458783431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1458783431 = 7 ⋅208397633.

It can be written as a sum of positive squares in 2 ways, for example, as 421480900 + 922397641 = 20530^2 + 30371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343878541 - 2² = 1343878537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1343878492 and 1343878501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343878511) 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, 1132526 + ... + 1133711.

It is an arithmetic number, because the mean of its divisors is an integer number (336536343).

Almost surely, 2^1343878541 is an apocalyptic number.

It is an amenable number.

1343878541 is a deficient number, since it is larger than the sum of its proper divisors (2266831).

1343878541 is an equidigital number, since it uses as much as digits as its factorization.

1343878541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266830.

The product of its digits is 322560, while the sum is 44.

The square root of 1343878541 is about 36658.9489892986. The cubic root of 1343878541 is about 1103.5364258832.

The spelling of 1343878541 in words is "one billion, three hundred forty-three million, eight hundred seventy-eight thousand, five hundred forty-one".