1314521543 has 4 divisors (see below), whose sum is σ = 1319372448. Its totient is φ = 1309670640.

The previous prime is 1314521539. The next prime is 1314521557. The reversal of 1314521543 is 3451254131.

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 1314521543 - 2² = 1314521539 is a prime.

It is a super-2 number, since 2×1314521543² = 3455933774022201698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314521563) 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, 2425046 + ... + 2425587.

It is an arithmetic number, because the mean of its divisors is an integer number (329843112).

Almost surely, 2^1314521543 is an apocalyptic number.

1314521543 is a deficient number, since it is larger than the sum of its proper divisors (4850905).

1314521543 is an equidigital number, since it uses as much as digits as its factorization.

1314521543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850904.

The product of its digits is 7200, while the sum is 29.

The square root of 1314521543 is about 36256.3310747240. The cubic root of 1314521543 is about 1095.4416163846.

Adding to 1314521543 its reverse (3451254131), we get a palindrome (4765775674).

The spelling of 1314521543 in words is "one billion, three hundred fourteen million, five hundred twenty-one thousand, five hundred forty-three".