131678012 has 6 divisors (see below), whose sum is σ = 230436528. Its totient is φ = 65839004.

The previous prime is 131677993. The next prime is 131678017. The reversal of 131678012 is 210876131.

131678012 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 not an unprimeable number, because it can be changed into a prime (131678017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16459748 + ... + 16459755.

It is an arithmetic number, because the mean of its divisors is an integer number (38406088).

Almost surely, 2^131678012 is an apocalyptic number.

It is an amenable number.

131678012 is a deficient number, since it is larger than the sum of its proper divisors (98758516).

131678012 is a wasteful number, since it uses less digits than its factorization.

131678012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32919507 (or 32919505 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 131678012 is about 11475.1040082432. The cubic root of 131678012 is about 508.7499978469.

The spelling of 131678012 in words is "one hundred thirty-one million, six hundred seventy-eight thousand, twelve".