131678236 has 6 divisors (see below), whose sum is σ = 230436920. Its totient is φ = 65839116.

The previous prime is 131678219. The next prime is 131678251. The reversal of 131678236 is 632876131.

131678236 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

131678236 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 131678195 and 131678204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16459776 + ... + 16459783.

Almost surely, 2^131678236 is an apocalyptic number.

It is an amenable number.

131678236 is a deficient number, since it is larger than the sum of its proper divisors (98758684).

131678236 is a wasteful number, since it uses less digits than its factorization.

131678236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32919563 (or 32919561 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 131678236 is about 11475.1137684992. The cubic root of 131678236 is about 508.7502863282.

The spelling of 131678236 in words is "one hundred thirty-one million, six hundred seventy-eight thousand, two hundred thirty-six".