1341520543 has 4 divisors (see below), whose sum is σ = 1463476968. Its totient is φ = 1219564120.

The previous prime is 1341520469. The next prime is 1341520547. The reversal of 1341520543 is 3450251431.

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

It is a cyclic number.

It is not a de Polignac number, because 1341520543 - 2²¹ = 1339423391 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 (1341520547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60978196 + ... + 60978217.

It is an arithmetic number, because the mean of its divisors is an integer number (365869242).

Almost surely, 2^1341520543 is an apocalyptic number.

1341520543 is a deficient number, since it is larger than the sum of its proper divisors (121956425).

1341520543 is a wasteful number, since it uses less digits than its factorization.

1341520543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121956424.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1341520543 is about 36626.7735816301. The cubic root of 1341520543 is about 1102.8906184900.

Adding to 1341520543 its reverse (3450251431), we get a palindrome (4791771974).

The spelling of 1341520543 in words is "one billion, three hundred forty-one million, five hundred twenty thousand, five hundred forty-three".