131886077 has 2 divisors, whose sum is σ = 131886078. Its totient is φ = 131886076.

The previous prime is 131886067. The next prime is 131886091. The reversal of 131886077 is 770688131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124858276 + 7027801 = 11174^2 + 2651^2 .

It is an emirp because it is prime and its reverse (770688131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131886077 - 2⁴ = 131886061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131886067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65943038 + 65943039.

It is an arithmetic number, because the mean of its divisors is an integer number (65943039).

Almost surely, 2^131886077 is an apocalyptic number.

It is an amenable number.

131886077 is a deficient number, since it is larger than the sum of its proper divisors (1).

131886077 is an equidigital number, since it uses as much as digits as its factorization.

131886077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 131886077 is about 11484.1663606898. The cubic root of 131886077 is about 509.0178161982.

The spelling of 131886077 in words is "one hundred thirty-one million, eight hundred eighty-six thousand, seventy-seven".