131472073821 has 16 divisors (see below), whose sum is σ = 191238727680. Its totient is φ = 79677286320.

The previous prime is 131472073813. The next prime is 131472073847. The reversal of 131472073821 is 128370274131.

It is not a de Polignac number, because 131472073821 - 2³ = 131472073813 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131472073821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131472073891) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1310670 + ... + 1407408.

It is an arithmetic number, because the mean of its divisors is an integer number (11952420480).

Almost surely, 2^131472073821 is an apocalyptic number.

131472073821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131472073821 is a deficient number, since it is larger than the sum of its proper divisors (59766653859).

131472073821 is a wasteful number, since it uses less digits than its factorization.

131472073821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137936.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 131472073821 in words is "one hundred thirty-one billion, four hundred seventy-two million, seventy-three thousand, eight hundred twenty-one".