131555472740 has 24 divisors (see below), whose sum is σ = 292517463672. Its totient is φ = 49526766080.

The previous prime is 131555472721. The next prime is 131555472817. The reversal of 131555472740 is 47274555131.

131555472740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 33155311396 + 98400161344 = 182086^2 + 313688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131555472691 and 131555472700.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 193463591 + ... + 193464270.

It is an arithmetic number, because the mean of its divisors is an integer number (12188227653).

Almost surely, 2^131555472740 is an apocalyptic number.

131555472740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131555472740 is an abundant number, since it is smaller than the sum of its proper divisors (160961990932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131555472740 is a wasteful number, since it uses less digits than its factorization.

131555472740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386927887 (or 386927885 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 131555472740 in words is "one hundred thirty-one billion, five hundred fifty-five million, four hundred seventy-two thousand, seven hundred forty".