131506677 has 12 divisors (see below), whose sum is σ = 196504620. Its totient is φ = 84647808.

The previous prime is 131506673. The next prime is 131506699. The reversal of 131506677 is 776605131.

It can be written as a sum of positive squares in 2 ways, for example, as 34503876 + 97002801 = 5874^2 + 9849^2 .

It is not a de Polignac number, because 131506677 - 2² = 131506673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131506673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251668 + ... + 252189.

It is an arithmetic number, because the mean of its divisors is an integer number (16375385).

Almost surely, 2^131506677 is an apocalyptic number.

It is an amenable number.

131506677 is a deficient number, since it is larger than the sum of its proper divisors (64997943).

131506677 is a wasteful number, since it uses less digits than its factorization.

131506677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503892 (or 503889 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 131506677 is about 11467.6360685191. The cubic root of 131506677 is about 508.5292459460.

The spelling of 131506677 in words is "one hundred thirty-one million, five hundred six thousand, six hundred seventy-seven".