131678051 has 4 divisors (see below), whose sum is σ = 132178992. Its totient is φ = 131177112.

The previous prime is 131678047. The next prime is 131678143. The reversal of 131678051 is 150876131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131678051 - 2² = 131678047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131677999 and 131678017.

It is not an unprimeable number, because it can be changed into a prime (131678251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250076 + ... + 250601.

It is an arithmetic number, because the mean of its divisors is an integer number (33044748).

Almost surely, 2^131678051 is an apocalyptic number.

131678051 is a deficient number, since it is larger than the sum of its proper divisors (500941).

131678051 is an equidigital number, since it uses as much as digits as its factorization.

131678051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500940.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 131678051 is about 11475.1057075741. The cubic root of 131678051 is about 508.7500480735.

The spelling of 131678051 in words is "one hundred thirty-one million, six hundred seventy-eight thousand, fifty-one".