131345454542005 has 16 divisors (see below), whose sum is σ = 171972568113984. Its totient is φ = 95507618260480.

The previous prime is 131345454541981. The next prime is 131345454542009. The reversal of 131345454542005 is 500245454543131.

It is a happy number.

It is not a de Polignac number, because 131345454542005 - 2³¹ = 131343307058357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131345454542009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204034204 + ... + 204676933.

It is an arithmetic number, because the mean of its divisors is an integer number (10748285507124).

Almost surely, 2^{131345454542005} is an apocalyptic number.

It is an amenable number.

131345454542005 is a deficient number, since it is larger than the sum of its proper divisors (40627113571979).

131345454542005 is a wasteful number, since it uses less digits than its factorization.

131345454542005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408716996.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 131345454542005 in words is "one hundred thirty-one trillion, three hundred forty-five billion, four hundred fifty-four million, five hundred forty-two thousand, five".