131900423445 has 48 divisors (see below), whose sum is σ = 262329604992. Its totient is φ = 60057072000.

The previous prime is 131900423443. The next prime is 131900423471. The reversal of 131900423445 is 544324009131.

131900423445 is a `hidden beast` number, since 1 + 3 + 190 + 0 + 4 + 23 + 445 = 666.

It is not a de Polignac number, because 131900423445 - 2¹ = 131900423443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131900423443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 755062 + ... + 913191.

It is an arithmetic number, because the mean of its divisors is an integer number (5465200104).

Almost surely, 2^131900423445 is an apocalyptic number.

131900423445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131900423445 is a deficient number, since it is larger than the sum of its proper divisors (130429181547).

131900423445 is a wasteful number, since it uses less digits than its factorization.

131900423445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668522 (or 1668519 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 131900423445 in words is "one hundred thirty-one billion, nine hundred million, four hundred twenty-three thousand, four hundred forty-five".