131345515354 has 4 divisors (see below), whose sum is σ = 197018273034. Its totient is φ = 65672757676.

The previous prime is 131345515339. The next prime is 131345515369. The reversal of 131345515354 is 453515543131.

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

It is an interprime number because it is at equal distance from previous prime (131345515339) and next prime (131345515369).

It can be written as a sum of positive squares in only one way, i.e., 130771194129 + 574321225 = 361623^2 + 23965^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836378837 + ... + 32836378840.

Almost surely, 2^131345515354 is an apocalyptic number.

131345515354 is a deficient number, since it is larger than the sum of its proper divisors (65672757680).

131345515354 is an equidigital number, since it uses as much as digits as its factorization.

131345515354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65672757679.

The product of its digits is 270000, while the sum is 40.

The spelling of 131345515354 in words is "one hundred thirty-one billion, three hundred forty-five million, five hundred fifteen thousand, three hundred fifty-four".