131481480647 has 24 divisors (see below), whose sum is σ = 148536049200. Its totient is φ = 116212631040.

The previous prime is 131481480643. The next prime is 131481480661. The reversal of 131481480647 is 746084184131.

It is not a de Polignac number, because 131481480647 - 2² = 131481480643 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131481480643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6521879 + ... + 6542007.

It is an arithmetic number, because the mean of its divisors is an integer number (6189002050).

Almost surely, 2^131481480647 is an apocalyptic number.

131481480647 is a deficient number, since it is larger than the sum of its proper divisors (17054568553).

131481480647 is a wasteful number, since it uses less digits than its factorization.

131481480647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21647 (or 21636 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 131481480647 in words is "one hundred thirty-one billion, four hundred eighty-one million, four hundred eighty thousand, six hundred forty-seven".