131053777 has 2 divisors, whose sum is σ = 131053778. Its totient is φ = 131053776.

The previous prime is 131053729. The next prime is 131053807. The reversal of 131053777 is 777350131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89567296 + 41486481 = 9464^2 + 6441^2 .

It is a cyclic number.

It is not a de Polignac number, because 131053777 - 2⁷ = 131053649 is a prime.

It is not a weakly prime, because it can be changed into another prime (131053277) 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 as a sum of consecutive naturals, namely, 65526888 + 65526889.

It is an arithmetic number, because the mean of its divisors is an integer number (65526889).

Almost surely, 2^131053777 is an apocalyptic number.

It is an amenable number.

131053777 is a deficient number, since it is larger than the sum of its proper divisors (1).

131053777 is an equidigital number, since it uses as much as digits as its factorization.

131053777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15435, while the sum is 34.

The square root of 131053777 is about 11447.8721603624. The cubic root of 131053777 is about 507.9447945155.

The spelling of 131053777 in words is "one hundred thirty-one million, fifty-three thousand, seven hundred seventy-seven".