131577049 has 2 divisors, whose sum is σ = 131577050. Its totient is φ = 131577048.

The previous prime is 131577013. The next prime is 131577067. The reversal of 131577049 is 940775131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98307225 + 33269824 = 9915^2 + 5768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131577049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131576999 and 131577017.

It is not a weakly prime, because it can be changed into another prime (131577949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65788524 + 65788525.

It is an arithmetic number, because the mean of its divisors is an integer number (65788525).

Almost surely, 2^131577049 is an apocalyptic number.

It is an amenable number.

131577049 is a deficient number, since it is larger than the sum of its proper divisors (1).

131577049 is an equidigital number, since it uses as much as digits as its factorization.

131577049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 131577049 is about 11470.7039452686. The cubic root of 131577049 is about 508.6199380170.

The spelling of 131577049 in words is "one hundred thirty-one million, five hundred seventy-seven thousand, forty-nine".