13402140543 has 12 divisors (see below), whose sum is σ = 21118524648. Its totient is φ = 8122509360.

The previous prime is 13402140539. The next prime is 13402140551. The reversal of 13402140543 is 34504120431.

It is a happy number.

It is not a de Polignac number, because 13402140543 - 2² = 13402140539 is a prime.

It is a super-2 number, since 2×13402140543² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402140343) 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 11 ways as a sum of consecutive naturals, for example, 67687480 + ... + 67687677.

It is an arithmetic number, because the mean of its divisors is an integer number (1759877054).

Almost surely, 2^13402140543 is an apocalyptic number.

13402140543 is a deficient number, since it is larger than the sum of its proper divisors (7716384105).

13402140543 is a wasteful number, since it uses less digits than its factorization.

13402140543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135375174 (or 135375171 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 13402140543 its reverse (34504120431), we get a palindrome (47906260974).

The spelling of 13402140543 in words is "thirteen billion, four hundred two million, one hundred forty thousand, five hundred forty-three".