131373445446 has 48 divisors (see below), whose sum is σ = 286554288384. Its totient is φ = 43497403632.

The previous prime is 131373445433. The next prime is 131373445543. The reversal of 131373445446 is 644544373131.

It is a happy number.

131373445446 is a `hidden beast` number, since 1 + 3 + 137 + 34 + 45 + 446 = 666.

131373445446 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4334581 + ... + 4364783.

It is an arithmetic number, because the mean of its divisors is an integer number (5969881008).

Almost surely, 2^131373445446 is an apocalyptic number.

131373445446 is an abundant number, since it is smaller than the sum of its proper divisors (155180842938).

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

131373445446 is a wasteful number, since it uses less digits than its factorization.

131373445446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31825 (or 31822 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The spelling of 131373445446 in words is "one hundred thirty-one billion, three hundred seventy-three million, four hundred forty-five thousand, four hundred forty-six".