13531200542 has 4 divisors (see below), whose sum is σ = 20296800816. Its totient is φ = 6765600270.

The previous prime is 13531200511. The next prime is 13531200547. The reversal of 13531200542 is 24500213531.

It is a happy number.

13531200542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531200547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382800134 + ... + 3382800137.

It is an arithmetic number, because the mean of its divisors is an integer number (5074200204).

Almost surely, 2^13531200542 is an apocalyptic number.

13531200542 is a deficient number, since it is larger than the sum of its proper divisors (6765600274).

13531200542 is an equidigital number, since it uses as much as digits as its factorization.

13531200542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765600273.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 13531200542 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, five hundred forty-two".